ATTORNEY-CLIENT PRIVILEGED AND CONFIDENTIAL ATTORNEY WORK PRODUCT — PREPARED IN ANTICIPATION OF LITIGATION
TIMELINE OF KEY EVENTS
Treaty No. PA-QCS-2019-EXL-0044 Dispute
Matter: Quorum Insurance Holdings Corp. — Pre-Suit Reinsurance Recoverable Dispute
Matter No.: 1025-00005
Prepared by: Jeffrey Park, Senior Associate, and Yuki Nakamura, Associate, Calderwood & Harkness LLP
Reviewed by: Douglas Carmichael, Responsible Partner, Calderwood & Harkness LLP
Date: March 12, 2026
Distribution:
Rachel Sondergaard, General Counsel, Quorum Insurance Holdings Corp. Douglas Carmichael, Calderwood & Harkness LLP Francesca Morano, Calderwood & Harkness LLP
RE: Chronological compilation of key events relating to the dispute between Quorum Casualty & Surety Company ("QC&S") and Pinnacle Atlantic Reinsurance Ltd. ("Pinnacle Atlantic") regarding $78,400,000 in reinsurance recoverables under Treaty No. PA-QCS-2019-EXL-0044, and Pinnacle Atlantic's pre-suit demand for return of said recoverables plus $12,600,000 in alleged accrued interest, totaling $91,000,000.
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I. PURPOSE AND SCOPE
This memorandum provides a detailed chronological timeline of all material events from the inception of the Aggregate Excess-of-Loss Reinsurance Treaty No. PA-QCS-2019-EXL-0044 (the "Treaty") between Quorum Casualty & Surety Company ("QC&S"), as cedent, and Pinnacle Atlantic Reinsurance Ltd. ("Pinnacle Atlantic"), as reinsurer, through the opening of the Calderwood & Harkness LLP engagement on March 2, 2026. The timeline is intended to serve as the master chronology for all litigation and arbitration preparation activities in connection with this matter.
The scope of this memorandum encompasses the following subject areas:
(a) Treaty execution, structure, and administration, including the original five-year term, automatic extension provisions, and non-renewal;
(b) Underlying claim developments giving rise to the disputed cessions, specifically the Meridian Docks mass tort cluster (Policy No. CGL-2020-09844) and the Veridian Financial Services errors and omissions ("E&O") cluster (Policy No. PL-2021-15327);
(c) QC&S's billing and cession history under the Treaty, including the submission and payment of seven billing installments totaling $78,400,000 across Treaty Years 2022 and 2023;
(d) Pinnacle Atlantic's escalating dispute posture, from the non-renewal notice of October 1, 2025, through the reservation of rights letter of December 12, 2025, to the formal pre-suit demand letter of February 14, 2026, issued by Hargrove, Fitch & Calloway LLP;
(e) QIH's internal corporate governance responses, including the Board Audit Committee's authorization of litigation counsel; and
(f) Upcoming key dates requiring attention in case planning.
Each entry in the timeline includes, where available, citations to key documents, including treaty provisions, correspondence, billing records, claims files, actuarial certificates, and corporate minutes. The citation key used throughout the memorandum is set forth in Section II below. This chronology is based on documents and information provided to Calderwood & Harkness LLP by QIH as of the date hereof. We expect that further document review and client interviews may result in supplementation or revision of this timeline.
This memorandum has been prepared at the direction of counsel in anticipation of litigation and is protected by the attorney-client privilege and the work product doctrine. It should not be disclosed to any person or entity outside the distribution list identified above without the prior written consent of Calderwood & Harkness LLP.
II. KEY TO DOCUMENT CITATIONS
The following abbreviations are used throughout this memorandum to identify the source documents cited in the timeline. All document identification numbers correspond to the preliminary document collection index maintained by Calderwood & Harkness LLP.
Unless otherwise indicated, all document references are to the original or best available copy in the possession of QIH or QC&S. Documents obtained from third parties are noted as such. Where a document has been identified but is not yet in Calderwood & Harkness's possession, it is flagged in Section V below with a notation regarding its current status and the steps required to obtain it.
III. DETAILED CHRONOLOGICAL TIMELINE
A. Treaty Inception and Initial Period (2019–2020)
July 1, 2019 — Treaty Inception
Aggregate Excess-of-Loss Reinsurance Treaty No. PA-QCS-2019-EXL-0044 becomes effective as of 12:01 a.m. Eastern Time on July 1, 2019.
The parties and key terms of the Treaty are as follows:
Cedent: Quorum Casualty & Surety Company (NAIC No. 24891), a New York-domiciled stock property and casualty insurer and a wholly-owned subsidiary of Quorum Insurance Holdings Corp. ("QIH"), a Delaware holding company.
Reinsurer: Pinnacle Atlantic Reinsurance Ltd. (BMA Registration No. BMA-4R-2008-0331), a Bermuda-domiciled Class 4 insurer.
Intermediary: Broadreach Intermediaries Inc., designated as intermediary under Article 9 of the Treaty, with full authority to transmit notices, billing statements, and other communications between the parties.
Covered Lines: The Treaty covers commercial general liability, excess and umbrella liability, and professional liability policies issued or renewed by QC&S during the applicable treaty year.
Structure: Aggregate excess-of-loss. QC&S retains a per treaty year aggregate net incurred loss retention of $120,000,000. Pinnacle Atlantic assumes liability for aggregate net incurred losses in excess of the $120,000,000 retention, up to a maximum cession limit of $200,000,000 per treaty year (i.e., losses from $120,000,000 to $320,000,000).
Premium: Provisional rate of 42% of ceded earned premium, subject to sliding-scale adjustment with a minimum rate of 35% and a maximum rate of 52%, to be calculated and adjusted annually based on the loss ratio for the applicable treaty year as set forth in Article 3.
Treaty Term: Five years, from July 1, 2019 through June 30, 2024, with automatic annual extensions thereafter absent delivery of a 90-day non-renewal notice by either party prior to the then-applicable expiration date, as provided in Article 1.
Governing Law: New York law governs the interpretation and enforcement of the Treaty (Article 16).
Dispute Resolution: All disputes arising out of or in connection with the Treaty are to be resolved by a three-member arbitration panel sitting in New York, New York, under the Arbitration Rules of ARIAS-U.S. (Article 22). The arbitration clause contains a broadly worded submission to arbitration of "any and all disputes or differences arising out of or in connection with the interpretation, performance, or breach of this Treaty."
The Treaty was placed by Jamie Castellano, Account Executive, Broadreach Intermediaries Inc. The Treaty was negotiated on behalf of QC&S by Tobias Engström, Senior Vice President, Reinsurance & Capital Markets, QIH. Pinnacle Atlantic's placement was handled through its London market office.
Documents: Treaty (executed copy); BR-001 (placement slip and cover note dated June 14, 2019); BR-002 (binding confirmation letter dated June 28, 2019).
July 1, 2019 – June 30, 2020 (Treaty Year 2020)
The first treaty year commences on July 1, 2019 and concludes on June 30, 2020. During this period, the Treaty was administered on a routine basis. Quarterly premium bordereaux were submitted by QC&S to Pinnacle Atlantic via Broadreach in accordance with Article 3 of the Treaty. Aggregate net incurred losses for the first treaty year remained well below the $120,000,000 retention. No cessions were triggered during Treaty Year 2020.
The administration of the Treaty during this initial period was uneventful. Broadreach transmitted all quarterly reports in a timely manner, and Pinnacle Atlantic did not raise any issues with respect to the premium bordereaux, loss reporting, or other aspects of treaty administration.
Documents: QCS-Billing-001 (Q1 TY 2020 quarterly premium report, dated October 2019); QCS-Billing-002 (Q2 TY 2020 quarterly premium report, dated January 2020); QCS-Billing-003 (Q3 TY 2020 quarterly premium report, dated April 2020); QCS-Billing-004 (Q4 TY 2020 quarterly premium report, dated July 2020).
B. Emergence of Meridian Docks Claims and Treaty Year 2021 (2020–2022)
During Calendar Year 2020 — QC&S Issues CGL Policy to Meridian Docks Development LLC
During calendar year 2020, QC&S issues Policy No. CGL-2020-09844 to Meridian Docks Development LLC, a New Jersey limited liability company engaged in the Meridian Docks industrial waterfront redevelopment project in Newark, New Jersey. The policy provides commercial general liability coverage for bodily injury and property damage claims arising out of the insured's operations at the Meridian Docks project site. The precise effective dates of the policy and the applicable policy limits are set forth in the policy declarations page, which is maintained in the QC&S claims file.
This policy becomes the primary source of coverage for the mass tort claims that subsequently emerge in connection with alleged toxic contamination at the Meridian Docks site, and the losses arising under this policy constitute a substantial portion of the aggregate net incurred losses ultimately ceded to Pinnacle Atlantic under the Treaty.
Documents: QCS-CF-MD-001 (Policy No. CGL-2020-09844, declarations page).
July 1, 2020 – June 30, 2021 (Treaty Year 2021)
The second treaty year commences on July 1, 2020 and concludes on June 30, 2021. Quarterly premium and loss bordereaux are submitted by QC&S to Pinnacle Atlantic via Broadreach in accordance with Article 3 of the Treaty.
Aggregate net incurred losses for Treaty Year 2021 are ultimately reported by QC&S at $104,600,000. Because this amount is below the $120,000,000 per treaty year retention, no cession attaches under the Treaty for Treaty Year 2021.
However, the IBNR (incurred but not reported) allocation for accident-year 2021 exposures later becomes a central issue in the dispute. Specifically, Pinnacle Atlantic contends that $22,300,000 in IBNR reserve strengthening that QC&S allocated to Treaty Year 2022 should properly have been allocated to Treaty Year 2021 (on the basis that the underlying exposures relate to accident-year 2021 occurrences). If this reallocation were adopted, it would increase Treaty Year 2021 aggregate net incurred losses to $126,900,000 (still within the retention only by a slim margin over the retention if combined with any other adjustment, but, more critically, it would reduce the Treaty Year 2022 ceded loss from $69,700,000 to $47,400,000). Velthorn Actuarial Advisors LLC prepared a loss development report for Treaty Year 2021 during this period.
Documents: QCS-Billing-005 through QCS-Billing-008 (quarterly premium and loss reports for TY 2021); GAA-001 (TY 2021 loss development report prepared by Velthorn Actuarial Advisors LLC).
March 15, 2021 — QC&S First Reserves Meridian Docks Mass Tort Claims
QC&S's claims department, under the supervision of Diana Kessler-Hoff, Vice President, Claims & Reinsurance Recoveries, establishes initial reserves for thirty-one (31) related commercial general liability bodily injury claims arising from alleged toxic contamination at the Meridian Docks industrial waterfront redevelopment project in Newark, New Jersey.
The policyholder on all claims is Meridian Docks Development LLC, insured under Policy No. CGL-2020-09844. The claims allege that contaminated soil and groundwater at the Meridian Docks site caused personal injuries to construction workers, nearby residents, and other individuals exposed to hazardous substances during and after redevelopment activities.
At the time of initial reserving, individual claim reserves are set at levels below the $1,000,000 individual claim reporting threshold specified in Article 7 of the Treaty. As a consequence, QC&S does not provide notice of these claims to Pinnacle Atlantic at this time. QC&S's position, as later articulated, is that notice was not required under Article 7 because no individual claim reserve had reached the $1,000,000 reporting threshold.
This date — March 15, 2021 — is the starting point for the 14-month, 7-day interval that Pinnacle Atlantic asserts constitutes a late notice violation. The characterization of this interval is central to the late notice defense raised in the pre-suit demand.
Documents: QCS-CF-MD-002 (initial reserve memorandum, dated March 15, 2021, establishing reserves for 31 Meridian Docks mass tort claims); QCS-CF-MD-003 (QC&S claims committee minutes, Q1 2021, reflecting discussion and approval of initial reserves).
C. Notice to Pinnacle Atlantic and Treaty Year 2022 Cessions (2022–2023)
Q1 2022 (January – March 2022) — Reserve Increases on Meridian Docks Claims
During the first quarter of 2022, QC&S's claims department conducts a periodic reserve review of the Meridian Docks mass tort cluster. This review results in significant upward reserve adjustments on multiple individual claims within the cluster. Several individual claim reserves cross the $1,000,000 individual reporting threshold established under Article 7 of the Treaty.
The reserve increases are driven by a number of developments in the underlying claims, including: (i) expanded discovery of the scope of contamination at the Meridian Docks site, including the identification of additional contaminant plumes and a broader geographic area of impact; (ii) the filing of additional claims by previously unidentified claimants, bringing the total number of claimants well above the original 31; and (iii) revised medical and toxicological assessments indicating more severe injuries and longer-term health consequences than initially anticipated.
Upon completion of the Q1 2022 reserve review, QC&S determines that formal notice to Pinnacle Atlantic is now required under Article 7 of the Treaty with respect to those individual claims that have crossed the $1,000,000 reporting threshold.
Documents: QCS-CF-MD-010 through QCS-CF-MD-018 (individual claim reserve adjustment notices for nine claims crossing the $1,000,000 threshold during Q1 2022); QCS-CF-MD-019 (Q1 2022 reserve review summary memorandum, prepared by Diana Kessler-Hoff, VP, Claims & Reinsurance Recoveries).
May 22, 2022 — QC&S Provides Notice to Pinnacle Atlantic of Meridian Docks Claims via Broadreach
QC&S transmits formal notice to Pinnacle Atlantic through Broadreach Intermediaries Inc. regarding the Meridian Docks mass tort claims. The notice identifies all thirty-one (31) original claims, as well as additional claims filed since the initial reserving, and provides summary information regarding the nature of the claims, the status of the underlying litigation, and the current reserve positions.
The notice is provided fourteen months and seven days after QC&S first reserved the Meridian Docks claims on March 15, 2021. This interval is the central factual predicate for Pinnacle Atlantic's late notice defense.
QC&S's position is that the notice was timely under Article 7 because:
(a) Article 7 requires notice only when individual claim reserves reach or exceed $1,000,000;
(b) No individual Meridian Docks claim reserve crossed the $1,000,000 threshold until the Q1 2022 reserve review;
(c) QC&S provided notice within approximately two months after the first claims crossed the reporting threshold; and
(d) The Article 7 notice obligation is triggered by the individual claim amount, not by the cedent's knowledge of the existence of the claims themselves.
Pinnacle Atlantic's position, as later asserted in the pre-suit demand letter of February 14, 2026, is that QC&S was obligated to provide notice of the Meridian Docks claims at the time of initial reserving, regardless of individual claim amounts, because QC&S knew or should have known that the claims, in the aggregate, had the potential to materially affect the Treaty cession, and that the 14-month, 7-day delay constitutes a breach of Article 7 and/or a breach of the implied obligation of utmost good faith.
Documents: BR-015 (notice transmittal from QC&S to Broadreach to Pinnacle Atlantic, dated May 22, 2022); QCS-CF-MD-020 (internal notice decision memorandum, prepared by Diana Kessler-Hoff, VP, Claims & Reinsurance Recoveries, dated May 18, 2022).
July 1, 2022 – June 30, 2023 (Treaty Year 2022)
The third treaty year commences on July 1, 2022 and concludes on June 30, 2023. This is the first treaty year in which the $120,000,000 aggregate retention is pierced and a cession attaches under the Treaty.
Aggregate net incurred losses for Treaty Year 2022 are ultimately reported by QC&S at $189,700,000. The ceded loss claimed by QC&S under the Treaty is calculated as follows:
Aggregate Net Incurred Losses (TY 2022): $189,700,000 Less: Per Treaty Year Retention: ($120,000,000) Ceded Loss (TY 2022): $69,700,000
The $189,700,000 aggregate figure includes $22,300,000 in IBNR reserve strengthening that Pinnacle Atlantic later alleges should be allocated to Treaty Year 2021 (on the ground that the underlying exposures relate to accident-year 2021 occurrences) rather than Treaty Year 2022. If Pinnacle Atlantic's reallocation argument were accepted, the effect would be as follows:
Aggregate Net Incurred Losses (TY 2022, as adjusted): $167,400,000 Less: Per Treaty Year Retention: ($120,000,000) Adjusted Ceded Loss (TY 2022): $47,400,000
Reduction in TY 2022 cession: $69,700,000 − $47,400,000 = $22,300,000
Velthorn Actuarial Advisors LLC (Principal Actuary: Dr. Stephen Tanaka, FCAS, MAAA) prepares loss development analyses and actuarial certificates supporting QC&S's allocation of the $22,300,000 IBNR reserve strengthening to Treaty Year 2022. The Velthorn analysis is based on accident-year 2022 development factors and standard actuarial methodologies for allocating IBNR reserves to the appropriate treaty year.
In addition, QC&S reports ceded earned premium for Treaty Year 2022 of $38,400,000. Pinnacle Atlantic later asserts that the correct ceded earned premium figure is $45,200,000, a difference of $6,800,000. At the provisional rate of 42%, this discrepancy would result in a treaty premium underpayment of approximately $2,856,000 (42% × $6,800,000). The premium reporting discrepancy is raised as one of the four grounds in Pinnacle Atlantic's pre-suit demand.
Documents: QCS-Billing-009 through QCS-Billing-012 (quarterly premium and loss reports for TY 2022); GAA-002 (TY 2022 actuarial certificate, dated August 2023); GAA-003 (IBNR loss development workpapers supporting TY 2022 allocation).
October 15, 2022 — First Billing Installment on TY 2022 Ceded Losses
QC&S submits its first billing installment of $15,000,000 on Treaty Year 2022 ceded losses to Pinnacle Atlantic via Broadreach Intermediaries Inc. The billing statement is submitted in the ordinary course and in accordance with the billing procedures established under Article 5 of the Treaty.
Pinnacle Atlantic pays the $15,000,000 installment without contemporaneous objection, reservation of rights, or any indication of dispute. The payment is received by QC&S in the normal course.
This is the first of seven billing installments that Pinnacle Atlantic ultimately pays across Treaty Years 2022 and 2023, totaling $78,400,000. The fact that Pinnacle Atlantic paid all seven installments without formal objection or reservation of rights during the period from October 15, 2022 through March 29, 2024 is potentially relevant to QC&S's waiver and estoppel defenses.
Documents: QCS-Billing-013 (billing statement, dated October 15, 2022, in the amount of $15,000,000); BR-016 (transmittal confirmation from Broadreach); PARL-001 (payment confirmation from Pinnacle Atlantic).
October 2022 – August 2023 — Subsequent TY 2022 Billing Installments
Following the initial $15,000,000 installment, QC&S submits and Pinnacle Atlantic pays additional billing installments on Treaty Year 2022 ceded losses during the period from approximately October 2022 through August 2023. These payments are made in the ordinary course without any reservation of rights, formal objection, or written expression of concern by Pinnacle Atlantic regarding the validity or quantum of the ceded losses.
The multiple installments during this period collectively bring the total paid on the Treaty Year 2022 cession to $69,700,000. The specific amounts and dates of each individual installment within this period are to be confirmed from the complete billing records, which have been requested from QC&S and are expected to be produced to Calderwood & Harkness within the coming weeks. However, preliminary information indicates that the installments were submitted and paid at approximately regular intervals throughout the period.
The absence of any contemporaneous objection by Pinnacle Atlantic during this 10-month payment period — encompassing multiple individual billing submissions, each requiring Pinnacle Atlantic to review, process, and authorize payment — is noteworthy and forms part of the factual basis for QC&S's anticipated waiver and estoppel arguments.
Documents: QCS-Billing-014 through QCS-Billing-019 (individual billing statements and payment confirmations for TY 2022 subsequent installments); BR-017 through BR-022 (transmittal records from Broadreach).
D. Veridian E&O Settlement and Treaty Year 2023 Cessions (2023–2024)
July 1, 2023 – June 30, 2024 (Treaty Year 2023)
The fourth treaty year commences on July 1, 2023 and concludes on June 30, 2024. This is the second and final treaty year in which a cession attaches under the Treaty.
Aggregate net incurred losses for Treaty Year 2023 are ultimately reported by QC&S at $128,700,000. The ceded loss claimed by QC&S under the Treaty is calculated as follows:
Aggregate Net Incurred Losses (TY 2023): $128,700,000 Less: Per Treaty Year Retention: ($120,000,000) Ceded Loss (TY 2023): $8,700,000
The Treaty Year 2023 cession is driven primarily by the settlement of the Veridian Financial Services E&O cluster, described immediately below. The total TY 2023 cession of $8,700,000, combined with the TY 2022 cession of $69,700,000, yields the total reinsurance recoverables at issue in this dispute: $78,400,000.
Documents: QCS-Billing-020 through QCS-Billing-023 (quarterly premium and loss reports for TY 2023); GAA-004 (TY 2023 actuarial certificate, prepared by Velthorn Actuarial Advisors LLC).
September 8, 2023 — QC&S Settles Veridian Financial Services E&O Cluster
QC&S settles three related errors and omissions / professional liability claims brought by institutional investors against Veridian Financial Services Inc., an investment advisory firm insured under QC&S Policy No. PL-2021-15327. The claims allege that Veridian Financial Services made material misrepresentations and omissions in connection with the marketing and sale of structured investment products to the plaintiff investors.
The total settlement amount for the three claims is $34,500,000, allocated as follows:
QC&S's net retained loss after recoveries from other reinsurance arrangements (not involving the Treaty) is $26,100,000. The amount ceded to the Treaty within the Treaty Year 2023 aggregate is $8,700,000, which constitutes the entirety of the TY 2023 cession.
The settlement was approved by the QC&S claims committee following a comprehensive evaluation of the litigation exposure, including an analysis of the merits of the underlying claims, the potential range of trial outcomes, the costs of continued defense, and the litigation risk profile of the pending proceedings.
Pinnacle Atlantic later alleges, in the pre-suit demand letter, that QC&S settled the Veridian E&O cluster without conducting a meaningful litigation exposure analysis; that the settlement amounts were inflated relative to the actual litigation risk; and that QC&S's motivation in settling at the amounts it did was to push aggregate losses above the $120,000,000 retention for Treaty Year 2023, thereby generating a cession under the Treaty. Pinnacle Atlantic contends that this conduct violates the follow-the-fortunes/settlements obligation under Article 11 of the Treaty, which requires QC&S to handle and settle claims in good faith and in a businesslike manner, and that Pinnacle Atlantic is not bound to follow a settlement that was made in bad faith or without a proper basis.
QC&S's anticipated response is that: (i) the settlements were made in good faith and in the ordinary course of business, based on a thorough and well-documented litigation risk assessment; (ii) the settlement amounts were within the reasonable range of potential outcomes; (iii) Article 11 does not require QC&S to consult with Pinnacle Atlantic prior to settlement or to obtain Pinnacle Atlantic's consent; and (iv) the follow-the-fortunes doctrine, as applied under New York law, obligates the reinsurer to follow the cedent's good-faith claims decisions and does not permit the reinsurer to second-guess reasonable settlement judgments after the fact.
Documents: QCS-CF-VF-001 (settlement agreement, dated September 8, 2023); QCS-CF-VF-002 (settlement evaluation memorandum, prepared by QC&S claims department); QCS-CF-VF-003 (QC&S claims committee minutes approving the Veridian E&O cluster settlement); QCS-CF-VF-004 through QCS-CF-VF-006 (individual claim files for Claims A, B, and C, respectively).
Late 2023 – March 2024 — TY 2023 Billing Installments
Following the settlement of the Veridian E&O cluster and the completion of the Treaty Year 2023 loss reporting, QC&S submits billing installments on the Treaty Year 2023 ceded losses of $8,700,000 to Pinnacle Atlantic via Broadreach Intermediaries Inc. Pinnacle Atlantic pays these installments in the ordinary course, without objection or reservation of rights, consistent with its course of conduct during the Treaty Year 2022 billing period.
March 29, 2024 — Final Billing Installment on TY 2023 Ceded Losses
QC&S submits the final billing installment of $3,200,000 for Treaty Year 2023 ceded losses to Pinnacle Atlantic via Broadreach. Upon payment of this installment, the cumulative total paid by Pinnacle Atlantic across all billing installments for Treaty Years 2022 and 2023 combined is $78,400,000.
The following table summarizes the billing history:
All payments totaling $78,400,000 were made by Pinnacle Atlantic across the period from October 15, 2022 through March 29, 2024 — a span of approximately 17.5 months — without any formal reservation of rights, written objection, or other indication of dispute. This uninterrupted course of payment is a critical fact for QC&S's waiver and estoppel defenses.
Documents: QCS-Billing-024 (final billing statement, dated March 29, 2024, in the amount of $3,200,000); BR-023 (transmittal confirmation from Broadreach); PARL-002 (payment confirmation from Pinnacle Atlantic).
E. Treaty Extensions (2024–2025)
June 30, 2024 — Original Treaty Expiration
The original five-year term of the Treaty (July 1, 2019 – June 30, 2024) expires on June 30, 2024. Neither QC&S nor Pinnacle Atlantic delivered a 90-day non-renewal notice prior to April 1, 2024 (i.e., 90 days before the June 30, 2024 expiration). Accordingly, pursuant to Article 1 of the Treaty, the Treaty automatically extends for an additional one-year period, constituting the first extension year (July 1, 2024 – June 30, 2025).
At this point in time, Pinnacle Atlantic has not communicated any dispute or concern regarding the Treaty or the cessions. All billing installments have been paid in full.
Documents: Treaty, Article 1 (term and renewal provisions).
June 30, 2025 — End of First Extension Year
The first one-year extension period (July 1, 2024 – June 30, 2025) ends on June 30, 2025. Neither party delivered a 90-day non-renewal notice prior to April 1, 2025. Accordingly, the Treaty automatically extends for a second additional one-year period (July 1, 2025 – June 30, 2026).
As discussed below, Pinnacle Atlantic subsequently delivers a non-renewal notice on October 1, 2025, which is timely with respect to the end of the second extension year (June 30, 2026) but does not affect the continued effectiveness of the Treaty during the second extension period.
Documents: Treaty, Article 1.
F. Pinnacle Atlantic's Escalating Dispute Posture (October 2025 – February 2026)
October 1, 2025 — Pinnacle Atlantic Delivers Non-Renewal Notice
Pinnacle Atlantic provides a 90-day non-renewal notice to QC&S via Broadreach Intermediaries Inc., electing not to extend the Treaty beyond the second extension period ending June 30, 2026. The notice is delivered more than 90 days prior to the June 30, 2026 expiration date and is therefore timely under Article 1 of the Treaty.
As a result of this notice, the Treaty will lapse on June 30, 2026 and will not renew for any further extension period. The non-renewal notice does not, by its terms, purport to affect any obligations arising under the Treaty during or with respect to the current or prior treaty years, including the run-off of claims ceded under the Treaty.
While the non-renewal notice does not itself assert any dispute regarding the Treaty or the cessions, it represents the first affirmative action by Pinnacle Atlantic that, in retrospect, signals an evolving posture toward the Treaty relationship. The non-renewal occurs approximately six months after the final billing installment was paid (March 29, 2024) and approximately two months before Pinnacle Atlantic issues its formal reservation of rights (December 12, 2025).
Documents: PARL-003 (non-renewal notice letter from Pinnacle Atlantic, dated October 1, 2025); BR-024 (transmittal record from Broadreach).
December 12, 2025 — Pinnacle Atlantic Sends Reservation of Rights Letter
Pinnacle Atlantic sends a formal "reservation of rights" letter directly to QC&S regarding the Treaty Year 2022 and Treaty Year 2023 cessions. The letter states that Pinnacle Atlantic is "investigating the propriety" of the cessions and that it "reserves all rights and defenses under the Treaty, at law, and in equity" in connection with the $78,400,000 in reinsurance recoverables previously paid.
This letter constitutes the first formal indication from Pinnacle Atlantic of its intent to challenge the validity or quantum of the paid reinsurance recoverables. No specific grounds for the investigation or potential dispute are articulated in the reservation of rights letter; rather, the letter broadly reserves all rights and defenses.
The reservation of rights letter is delivered approximately 20 months and 14 days after Pinnacle Atlantic's final payment on March 29, 2024. This substantial delay between the completion of all payments and the first expression of any dispute is potentially significant for QC&S's waiver, estoppel, and laches defenses.
Documents: PARL-004 (reservation of rights letter from Pinnacle Atlantic, dated December 12, 2025).
February 14, 2026 — Pre-Suit Demand Letter from Hargrove, Fitch & Calloway LLP
Pinnacle Atlantic's outside counsel, Hargrove, Fitch & Calloway LLP ("HFC"), sends a formal pre-suit demand letter to QC&S. The letter is authored by Nathaniel R. Calloway III, senior partner, and Priya Subramanian, senior associate, both of HFC's Bermuda/New York reinsurance dispute practice.
The HFC demand letter demands the return of the full $78,400,000 in paid reinsurance recoverables, plus $12,600,000 in accrued interest (calculated at approximately 8% per annum on the funds paid, averaging approximately 24 months from the respective dates of payment), for a total demand of $91,000,000.
The demand letter asserts four grounds for recovery:
1. Late Notice (Article 7): Pinnacle Atlantic contends that QC&S failed to provide timely notice of the Meridian Docks mass tort cluster. The letter emphasizes the 14-month, 7-day delay between QC&S's initial reserving of the Meridian Docks claims (March 15, 2021) and the transmission of formal notice to Pinnacle Atlantic (May 22, 2022). Pinnacle Atlantic argues that Article 7 required QC&S to notify the reinsurer of the claims at the time of initial reserving, regardless of individual claim amounts, because QC&S knew or should have known of the potential aggregate impact on the Treaty. Pinnacle Atlantic asserts that the late notice prejudiced its ability to monitor and participate in the claims handling process, and that it is entitled to void its obligations with respect to the Meridian Docks cluster.
2. Misallocation of Loss Development (Article 5): Pinnacle Atlantic contends that $22,300,000 in IBNR reserve strengthening was improperly allocated to Treaty Year 2022 instead of Treaty Year 2021. Pinnacle Atlantic asserts that the underlying exposures giving rise to the IBNR relate to accident-year 2021 occurrences and should be allocated accordingly. If the $22,300,000 were reallocated to Treaty Year 2021, the effect would be to reduce the Treaty Year 2022 ceded loss from $69,700,000 to $47,400,000, and to increase Treaty Year 2021 aggregate net incurred losses from $104,600,000 to $126,900,000 (which would still exceed the $120,000,000 retention but would result in a TY 2021 cession of only $6,900,000 rather than $0). The net effect of the reallocation, viewed in isolation, would be a reduction in total ceded losses of approximately $15,400,000.
3. Failure to Follow the Fortunes / Settlements (Article 11): Pinnacle Atlantic contends that the Veridian E&O cluster settlement of $34,500,000 was not made in the ordinary course of business, was not characterized by good faith and businesslike conduct as required by Article 11, and was motivated by a desire to inflate aggregate losses above the $120,000,000 retention for Treaty Year 2023. Pinnacle Atlantic asserts that the settlement amounts were disproportionate to the actual litigation exposure on the underlying claims and that QC&S failed to conduct a proper litigation risk assessment. On this basis, Pinnacle Atlantic argues that it is not bound to follow the settlement and that the entire TY 2023 cession of $8,700,000 should be returned.
4. Inaccurate Premium Reporting (Article 3): Pinnacle Atlantic contends that QC&S underreported ceded earned premium for Treaty Year 2022 by $6,800,000, reporting $38,400,000 rather than the $45,200,000 that Pinnacle Atlantic calculates based on its own analysis. At the provisional rate of 42%, this discrepancy results in an alleged treaty premium underpayment of approximately $2,856,000 (42% × $6,800,000). Pinnacle Atlantic asserts an entitlement to treaty termination or offset based on this alleged underreporting.
In addition to the four substantive grounds, the HFC letter asserts that the arbitration clause contained in Article 22 of the Treaty "is inapplicable to the specific claims raised herein." The letter does not elaborate on the legal basis for this assertion. The letter threatens litigation in the Supreme Court of the State of New York, New York County, Commercial Division, if the demand is not satisfied within thirty (30) days.
The total demand of $91,000,000 represents a significant exposure for QC&S and QIH, as discussed in greater detail in Section III.G below regarding the internal financial impact assessment.
Documents: HFC-001 (pre-suit demand letter from Hargrove, Fitch & Calloway LLP, dated February 14, 2026).
G. QIH Internal Response and Retention of Litigation Counsel (February–March 2026)
Mid-February 2026 — Internal QIH Evaluation
Upon receipt of the HFC demand letter, Rachel Sondergaard, General Counsel of Quorum Insurance Holdings Corp., immediately commences an internal evaluation of the demand and its potential financial and regulatory implications. Ms. Sondergaard consults with the following individuals:
(a) Tobias Engström, Senior Vice President, Reinsurance & Capital Markets, QIH — regarding the history of the Treaty placement, the cession mechanics, and the premium reporting process;
(b) Diana Kessler-Hoff, Vice President, Claims & Reinsurance Recoveries, QC&S — regarding the Meridian Docks claims handling, the notice chronology, the Veridian E&O settlement, and the underlying reserve and IBNR allocation decisions;
(c) Harmon & Whitfield LLP (Elaine Whitfield-Ross, insurance regulatory counsel) — regarding the potential regulatory implications of a partial or full write-off of the $78,400,000 reinsurance recoverable on QC&S's statutory surplus and Schedule F filings, and the potential for regulatory inquiry or action by the New York Department of Financial Services.
Ms. Sondergaard's preliminary assessment of the financial impact is as follows:
Statutory Surplus Impact: QC&S's statutory surplus as of December 31, 2025 (per Schedule F, Part 3 of the NAIC Annual Statement) is $1,420,000,000. A full write-off of the $78,400,000 reinsurance recoverable would reduce statutory surplus to approximately $1,341,600,000. A full disgorgement of the $91,000,000 demand (including interest) would reduce statutory surplus to approximately $1,329,000,000.
Credit Facility Covenant Compliance: QIH maintains a revolving credit facility with Cartwright National Bank (maturing June 2028) that includes a minimum statutory surplus covenant requiring QC&S to maintain statutory surplus of not less than $1,100,000,000. Current headroom under the covenant is $320,000,000 ($1,420,000,000 − $1,100,000,000). A full write-off of $78,400,000 would reduce headroom to $241,600,000. A full disgorgement of $91,000,000 would reduce headroom to $229,000,000. While QC&S would remain in compliance with the covenant under either scenario, the reduced headroom is a concern in light of other potential loss development.
GAAP Financial Statement Impact: Ms. Sondergaard coordinates with Meridian Whitcomb & Co. LLP (Patricia Hernandez, CPA, audit partner) regarding the potential impact on QIH's fiscal year 2025 GAAP financial statements. A full write-off of the $78,400,000 reinsurance recoverable would result in a pre-tax charge of $78,400,000 and an after-tax impact of approximately $61,936,000 (assuming an effective tax rate of approximately 21%). The timing of any required charge (i.e., whether it must be recorded as of December 31, 2025 or may be deferred to a subsequent reporting period as a subsequent event) is under discussion with the auditors.
Ms. Sondergaard prepares an internal memorandum to QIH Chief Executive Officer Martin Galbraith summarizing the demand, the preliminary financial impact assessment, and a recommendation to retain specialized outside litigation counsel.
Documents: QIH-Corp-001 (internal memorandum from Rachel Sondergaard, General Counsel, to Martin Galbraith, CEO, QIH, dated approximately mid-February 2026).
February 24, 2026 — QIH Board Audit Committee Authorizes Retention of Litigation Counsel
The Audit Committee of the QIH Board of Directors is convened for a special session on February 24, 2026. The committee is briefed by Ms. Sondergaard on the Pinnacle Atlantic pre-suit demand, the total exposure of $91,000,000, the four grounds asserted by HFC, the preliminary financial impact assessment, and the need for specialized outside litigation counsel to assess the merits of the dispute, develop a defense strategy, and prepare for potential litigation or arbitration.
Following deliberation, the Audit Committee unanimously authorizes the retention of outside litigation counsel with expertise in reinsurance disputes and specifically approves the engagement of Calderwood & Harkness LLP, based on the firm's recognized expertise in reinsurance litigation and arbitration and its prior work for QIH in unrelated matters.
Documents: QIH-Corp-002 (Audit Committee minutes, February 24, 2026, special session); QIH-Corp-003 (board resolution authorizing retention of outside litigation counsel, adopted February 24, 2026).
March 2, 2026 — Calderwood & Harkness LLP Engagement Opened
Calderwood & Harkness LLP (One Liberty Plaza, 55th Floor, New York, NY 10006) is formally retained by Quorum Insurance Holdings Corp. to represent QIH and QC&S in connection with the Pinnacle Atlantic dispute. The engagement letter is executed by Douglas Carmichael, Responsible Partner, Calderwood & Harkness LLP, and Rachel Sondergaard, General Counsel, QIH.
The key terms of the engagement are as follows:
Matter Number: 1025-00005
Engagement Team:
All rates reflect a 5% discount from the firm's standard rates, pursuant to the long-standing client relationship between Calderwood & Harkness LLP and QIH.
Phase 1 Budget Estimate (Strategy Assessment and Pre-Litigation): $450,000 – $625,000
Total Estimated Budget Through Trial/Arbitration: $3,200,000 – $4,800,000
Matter Status: Prospective (pre-litigation)
On March 4, 2026, Calderwood & Harkness LLP issues a comprehensive litigation hold notice to QIH, QC&S, Broadreach Intermediaries Inc., and Velthorn Actuarial Advisors LLC, requiring the preservation of all documents and electronically stored information potentially relevant to the Pinnacle Atlantic dispute.
Documents: Calderwood & Harkness LLP engagement letter (executed, March 2, 2026).
H. Upcoming Key Dates
June 30, 2026 — Treaty Lapse
The second one-year extension period of the Treaty ends on June 30, 2026. Pursuant to the non-renewal notice delivered by Pinnacle Atlantic on October 1, 2025 (PARL-003), the Treaty will expire and will not renew for any further extension period.
Following the lapse of the Treaty, the parties' respective obligations will be governed by the run-off and survival provisions of the Treaty. Calderwood & Harkness LLP will analyze the Treaty's run-off provisions, including the extent to which the parties' substantive rights and obligations continue following Treaty lapse, as well as the survival of the arbitration clause (Article 22) and other procedural provisions. The continued applicability of Article 22 is of particular importance in light of HFC's assertion in the pre-suit demand letter that the arbitration clause is inapplicable to the claims raised.
Documents: Treaty, Articles 1, 22; PARL-003 (non-renewal notice, dated October 1, 2025).
IV. SUMMARY OF KEY INTERVALS AND GAPS
The following table summarizes the critical time intervals referenced in the dispute. These intervals are expected to feature prominently in the parties' respective legal arguments regarding late notice, waiver, estoppel, and laches.
The intervals above should be correlated with the contractual notice and cure periods under the Treaty, as well as any applicable statutes of limitations and repose periods under New York law, to assess the timeliness of Pinnacle Atlantic's claims and the viability of QC&S's affirmative defenses.
V. INDEX OF REFERENCED DOCUMENTS
The following is a master index of all documents cited in this timeline, organized by document identification number. For each document, the index provides a brief description, the identified custodian, and the current production and preservation status as of the date of this memorandum.
Litigation Hold Notice. A comprehensive litigation hold notice was issued by Calderwood & Harkness LLP on March 4, 2026, directed to the following custodians and entities: Quorum Insurance Holdings Corp. (all relevant officers and departments), Quorum Casualty & Surety Company (Claims Department, Reinsurance Department, Accounting Department), Broadreach Intermediaries Inc., and Velthorn Actuarial Advisors LLC. All documents in the possession of these entities that are potentially relevant to the dispute are subject to the preservation obligation imposed by the litigation hold and must not be destroyed, modified, or discarded.
Documents Not Yet in C&H Possession. The following categories of documents have been identified as necessary for case development but are not yet in the firm's possession and need to be requested from the client or third parties:
(a) Complete set of Broadreach transmittal records for all TY 2022 and TY 2023 billing installments (BR-017 through BR-022; BR-023);
(b) QC&S quarterly premium and loss bordereaux for Treaty Years 2020, 2021, and 2023 (QCS-Billing-001 through QCS-Billing-008; QCS-Billing-020 through QCS-Billing-023);
(c) Individual claim reserve adjustment notices for Q1 2022 Meridian Docks reserve review (QCS-CF-MD-010 through QCS-CF-MD-018);
(d) Complete Velthorn Actuarial Advisors workpapers supporting the TY 2021 and TY 2023 loss development reports and actuarial certificates (GAA-001; GAA-003 (complete set); GAA-004);
(e) Policy No. CGL-2020-09844 declarations page (QCS-CF-MD-001);
(f) Meridian Whitcomb & Co. LLP audit workpapers relating to the QIH FY 2025 GAAP financial statements and the reinsurance recoverable balance (MW-[###]); and
(g) Any internal QC&S or QIH correspondence, memoranda, or communications relating to the Treaty, the Meridian Docks claims, or the Veridian E&O settlement that have not yet been identified or collected.
We will coordinate with Ms. Sondergaard and the relevant QIH and QC&S personnel to arrange the collection and production of these documents on an expedited basis.
ATTORNEY-CLIENT PRIVILEGED AND CONFIDENTIAL — ATTORNEY WORK PRODUCT
This memorandum was prepared by Calderwood & Harkness LLP in anticipation of litigation and is protected by the attorney-client privilege and the work product doctrine. It is intended solely for the use of the persons identified on the distribution list and should not be disclosed, distributed, or copied to any other person or entity without the prior written consent of Calderwood & Harkness LLP.