FR EA
1043-00002 · Ironhaven Data Centers LLC · Land Acquisition/Stonebridge
closing-checklist-stonebridge.xlsx DOCUMENT Real Estate
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Contract analysis Extract to table

[sheet: Settlement Statement]

Line No.DescriptionBuyer DebitBuyer CreditSeller DebitSeller CreditNotes
1Purchase Price — Stonebridge Parcel (62.0 acres, Loudoun County Tax Map Ref. /95-4A-1///)58,500,000.0058,500,000.00PSA dated April 15, 2025; $943,548/acre
2Earnest Money Deposit — First Tranche (deposited at PSA execution, April 15, 2025)1,462,500.001,462,500.00Held by Fidelitas Title & Escrow, Inc.
3Earnest Money Deposit — Second Tranche (deposited at expiration of due diligence, July 14, 2025)1,462,500.001,462,500.00Held by Fidelitas Title & Escrow, Inc.
4Total Earnest Money Credit2,925,000.002,925,000.005% of $58,500,000
5Proration — Real Estate Taxes (Loudoun County, Jan 1 – Sep 15, 2025; 258 days of 365) — Seller's Share52,347.9552,347.95Annual tax est. $74,050.00 (assessed value ~$6,750,000 × $1.097/$100); Seller's share: $74,050.00 × 258/365 = $52,347.95; credited to Buyer if taxes unpaid at closing
6Proration — Real Estate Taxes (Buyer's share Sep 16 – Dec 31, 2025; 107 days of 365)21,702.05Buyer assumes taxes from closing date forward; $74,050.00 × 107/365 = $21,702.05
7Virginia State Grantor's Tax ($1.00 per $1,000 of consideration)58,500.00$58,500,000 × $1.00/$1,000 = $58,500.00; paid by Seller per Virginia Code § 58.1-802
8Virginia State Grantee's Tax (Regional Congestion Relief Fee — $0.15 per $100 of consideration, applicable in NoVA localities)87,750.00$58,500,000 × $0.15/$100 = $87,750.00; paid by Buyer
9Loudoun County Local Recording Tax (Deed)48,730.50$58,500,000 × $0.0833/$100 = $48,730.50; per Va. Code § 58.1-814
10Deed Recording Fee — Loudoun County Circuit Court Clerk186.00Estimated 6 pages × $31.00/page = $186.00; per Loudoun County Clerk's fee schedule
11Owner's Title Insurance Premium — Sovereign Title Insurance Company (policy amount: $58,500,000)127,500.00Paid by Seller per PSA terms; underwritten by Sovereign Title Insurance Company through Fidelitas Title & Escrow, Inc.
12Lender's Title Insurance Premium — Sovereign Title Insurance Company (policy amount: $390,000,000)0.00Deferred to construction loan closing (October 15, 2025); not charged at land closing
13Title Search / Examination Fee — Fidelitas Title & Escrow, Inc.3,750.00Title commitment effective date: April 3, 2025; paid by Seller
14Escrow / Settlement Fee — Fidelitas Title & Escrow, Inc. (Seller's share)3,500.00Total settlement fee $7,000; split equally between Buyer and Seller per PSA
15Escrow / Settlement Fee — Fidelitas Title & Escrow, Inc. (Buyer's share)3,500.00Total settlement fee $7,000; split equally between Buyer and Seller per PSA
16ALTA/NSPS Survey Cost — Lumen Ridge Engineering, PLLC38,500.00Survey completed by June 15, 2025; Carlos Esteban, PE; 62.0 acres
17Phase I ESA Cost — Pendleton Environmental Associates, Inc.12,500.00Phase I completed by June 1, 2025; Dr. Renata Volkov
18Phase II ESA Cost — Pendleton Environmental Associates, Inc.47,500.00Phase II completed by July 1, 2025; NW quadrant pesticide investigation (4.2 acres)
19Appraisal Fee — Greystone Appraisal Partners, LLC18,000.00MAI appraisal for lender; Janet Choi, MAI
20Geotechnical Investigation — Brannigan Geotechnical Engineering, LLC32,000.00Foundation design recommendations; Neil Brannigan, PE
21Seller's Attorney Fees — Whitfield, Poole & Stratton LLP85,000.00Harrison Poole, Lead Partner
22Buyer's Attorney Fees — Calderwood & Harkness LLP175,000.00Douglas Fairchild / Cynthia Ho; Matter No. 1043-00002
23Deed Preparation Fee1,500.00Special Warranty Deed — Blackthorn Realty Group, Inc. to Stonebridge Campus Holdings LLC
24Assignment of PSA Fee (IHDC to Stonebridge Campus Holdings LLC)2,500.00Assignment and Assumption Agreement — pre-closing
25Proration — Association / HOA DuesN/A — no HOA applicable
26Proration — Utility Charges (Seller's share through closing)375.00Seller responsible through date of closing; minimal charges on undeveloped land
27Proration — Stormwater / Drainage Fees (Seller's share, 258/365)282.74282.74Annual fee est. $400.00; Seller's share: $400.00 × 258/365 = $282.74
28Proration — Stormwater / Drainage Fees (Buyer's share, 107/365)117.26Buyer's share: $400.00 × 107/365 = $117.26

29

30Subtotal — Buyer Debits58,987,985.81Sum of all Buyer Debit items (Lines 1,6,8,9,10,15,16,17,18,19,20,22,24,28)
31Subtotal — Buyer Credits2,977,630.69Sum of all Buyer Credit items (Lines 4,5,27)
32Net Amount Due from Buyer at Closing56,010,355.12Buyer Debits ($58,987,985.81) minus Buyer Credits ($2,977,630.69)
33Subtotal — Seller Credits58,500,000.00Sum of all Seller Credit items (Line 1 — Purchase Price)
34Subtotal — Seller Debits3,256,955.69Sum of all Seller Debit items (Lines 2,3,5,7,11,13,14,21,23,26,27)
35Net Amount Due to Seller at Closing55,243,044.31Seller Credits ($58,500,000.00) minus Seller Debits ($3,256,955.69)

[sheet: Closing Checklist]

Item No.CategoryDocument / DeliverableResponsible PartyDue DateStatusNotes
1Seller DeliverablesSpecial Warranty Deed — Blackthorn Realty Group, Inc. (Grantor) to Stonebridge Campus Holdings LLC (Grantee), Loudoun County Tax Map Ref. /95-4A-1///Whitfield, Poole & Stratton LLP (Harrison Poole) / Blackthorn Realty Group, Inc.September 15, 2025DraftConveyance of 62.0 acres; consideration: $58,500,000
2Seller DeliverablesSeller's Affidavit of Title / Owner's AffidavitBlackthorn Realty Group, Inc. (Donald R. Whitaker, President)September 15, 2025PendingRequired by Fidelitas Title & Escrow, Inc.
3Seller DeliverablesFIRPTA Certificate (Non-Foreign Affidavit) — Blackthorn Realty Group, Inc.Whitfield, Poole & Stratton LLPSeptember 15, 2025PendingBlackthorn is a Virginia corporation; EIN: 54-1987234
4Seller DeliverablesCertificate of Good Standing — Blackthorn Realty Group, Inc. (Virginia SCC)Whitfield, Poole & Stratton LLPSeptember 15, 2025PendingVirginia SCC Entity ID: 0412876-3
5Seller DeliverablesCorporate Resolution / Authority — Blackthorn Realty Group, Inc. authorizing saleWhitfield, Poole & Stratton LLPSeptember 15, 2025PendingPatricia Whitaker-Connolly, General Counsel
6Seller DeliverablesSeller's Closing Certificate — representations and warranties bring-downWhitfield, Poole & Stratton LLPSeptember 15, 2025Pending
7Seller DeliverablesTitle Curative Documents — response to Title Objection LetterWhitfield, Poole & Stratton LLPPrior to closingUnder ReviewPer title objection letter from Calderwood & Harkness LLP (Cynthia Ho)
8Seller DeliverablesMechanic's Lien Affidavit / No-Liens AffidavitBlackthorn Realty Group, Inc.September 15, 2025Pending
9Seller DeliverablesKeys, Access Codes, and Site Materials (if applicable)Blackthorn Realty Group, Inc.September 15, 2025PendingUndeveloped land; limited applicability
10Seller DeliverablesVirginia Uniform Real Property Transfer on Death Act Waiver (if applicable)Whitfield, Poole & Stratton LLPSeptember 15, 2025N/ANot applicable — corporate seller
11Buyer DeliverablesAssignment and Assumption of PSA — IHDC to Stonebridge Campus Holdings LLCCalderwood & Harkness LLP (Cynthia Ho)Prior to closingDraftIHDC retains guaranty obligations
12Buyer DeliverablesSecretary's Certificate — Ironhaven Data Centers LLC (authority to transact)Calderwood & Harkness LLPSeptember 15, 2025DraftMarcus Thorne (CEO) and Priya Dasgupta (CFO) as authorized signatories
13Buyer DeliverablesArticles of Organization — Stonebridge Campus Holdings LLC (Virginia LLC) — filed and certifiedCalderwood & Harkness LLPPrior to closingDraftFiled with Virginia SCC; wholly owned by IHDC
14Buyer DeliverablesOperating Agreement — Stonebridge Campus Holdings LLC (executed)Calderwood & Harkness LLPPrior to closingDraftIncludes single-purpose entity and separateness covenants per lender requirements
15Buyer DeliverablesCertificate of Good Standing — Ironhaven Data Centers LLC (Delaware SOS + Virginia SCC)Calderwood & Harkness LLPSeptember 15, 2025PendingDelaware LLC; Virginia SCC Entity ID: S7491283; EIN: 84-3291057
16Buyer DeliverablesCertificate of Good Standing — Stonebridge Campus Holdings LLC (Virginia SCC)Calderwood & Harkness LLPSeptember 15, 2025PendingTo be obtained upon formation
17Buyer DeliverablesBuyer's Closing CertificateCalderwood & Harkness LLPSeptember 15, 2025Draft
18Buyer DeliverablesEvidence of Insurance — Stonebridge Campus Holdings LLC (general liability, if required at closing)Northgate Insurance Brokerage, LLC (William Keane)September 15, 2025PendingMay be deferred to construction loan closing
19Title & SurveyOwner's Title Insurance Policy — Sovereign Title Insurance Company (amount: $58,500,000)Fidelitas Title & Escrow, Inc.At or post-closingPendingTitle commitment effective date: April 3, 2025
20Title & SurveyTitle Commitment — final updated commitment with all exceptions resolvedFidelitas Title & Escrow, Inc.Prior to closingUnder ReviewOriginal commitment: April 3, 2025; bring-down search required
21Title & SurveyALTA/NSPS Land Title Survey — Stonebridge Parcel (62.0 acres)Lumen Ridge Engineering, PLLC (Carlos Esteban, PE)June 15, 2025PendingSurvey to be certified to Buyer, lenders, and title company
22Title & SurveyTitle Objection Letter — confirmation of curative completionCalderwood & Harkness LLP (Cynthia Ho) / Whitfield, Poole & Stratton LLP (Harrison Poole)Prior to closingUnder Review
23Title & SurveyEndorsements to Owner's Title Policy (access, zoning, survey, etc.)Fidelitas Title & Escrow, Inc. / Sovereign Title Insurance CompanyAt or post-closingPendingAs required by Buyer and lender
24Due DiligencePhase I ESA — Stonebridge ParcelPendleton Environmental Associates, Inc. (Dr. Renata Volkov)June 1, 2025PendingFormer agricultural use identified
25Due DiligencePhase II ESA — Stonebridge Parcel (NW quadrant, ~4.2 acres)Pendleton Environmental Associates, Inc. (Dr. Renata Volkov)July 1, 2025PendingPotential residual pesticide contamination; sampling authorized
26Due DiligenceEnvironmental Due Diligence Summary Memorandum — Stonebridge ParcelCalderwood & Harkness LLP (Grace Nakamura)Post Phase IIDraftSummary of Phase I and Phase II findings
27Due DiligenceGeotechnical Investigation Report — Stonebridge ParcelBrannigan Geotechnical Engineering, LLC (Neil Brannigan, PE)Prior to closingPendingFoundation design recommendations
28Due DiligenceMAI Appraisal — Stonebridge ParcelGreystone Appraisal Partners, LLC (Janet Choi, MAI)Prior to closingPendingIndependent appraisal for construction lender
29Due DiligenceZoning Confirmation / ZMOD Status LetterAshcroft & Wynn, P.C. (Thomas Ashcroft) / Cornerstone Land Use Consulting, LLC (Alan Mercer)Prior to closingPendingCurrent zoning: PD-IP; ZMOD application (ZMOD-2025-0038) filed May 30, 2025; Board of Supervisors hearing: October 2025
30Due DiligenceDue Diligence Period Expiration Confirmation — Stonebridge PSACalderwood & Harkness LLPJuly 14, 2025Pending90 days from PSA execution (April 15, 2025)
31Due DiligenceWetlands / Waters of the US Delineation Report (if applicable)Pendleton Environmental Associates, Inc.Prior to closingPendingPreliminary desktop review completed; field delineation may be required
32Financing CoordinationConfirmation of equity funding status — Ridgeline Capital Partners Fund IV, LPJulian Hargrove / Priya DasguptaPrior to closingPendingRidgeline Fund IV to fund $210M total equity; Investment ID: RCP-IV-2025-DC-07; 92% interest through RCP Digital Holdings LLC
33Financing CoordinationConstruction Loan Commitment Letter — Summit National Bank, N.A.Karen Ellsworth (Summit) / Redmond & Calloway LLP (Victor Redmond)August 1, 2025PendingRef: CL-2025-VA-04418; $390M facility; construction loan closing targeted for October 15, 2025 (post land closing)
34Financing CoordinationLender consent to land closing prior to construction loan closing (if required)Summit National Bank / Redmond & Calloway LLPPrior to closingPendingCoordination with lender's counsel required
35Financing CoordinationEquity capital call notice — Ridgeline Capital Partners Fund IV, LPJulian Hargrove / Priya Dasgupta10 business days prior to closingPendingLand acquisition equity draw from Fund IV
36Escrow & FundsWire transfer instructions — Buyer to Fidelitas Title & Escrow, Inc.Fidelitas Title & Escrow, Inc.3 business days prior to closingPendingFidelitas: 44121 Harry Byrd Highway, Suite 120, Ashburn, VA 20147
37Escrow & FundsRelease of Earnest Money Deposit ($2,925,000) from escrow to Seller creditFidelitas Title & Escrow, Inc.September 15, 2025PendingTwo tranches: $1,462,500 (execution) + $1,462,500 (DD expiration)
38Escrow & FundsWire of net closing proceeds to Seller (Blackthorn Realty Group, Inc.)Fidelitas Title & Escrow, Inc.September 15, 2025PendingBlackthorn address: 112 East Market Street, Suite 400, Leesburg, VA 20176
39Escrow & FundsVerification of wire instructions — callback to Seller's bankFidelitas Title & Escrow, Inc.Prior to closingPendingAnti-fraud verification protocol
40Recording & Post-ClosingRecording of Special Warranty Deed — Loudoun County Circuit Court Clerk's OfficeFidelitas Title & Escrow, Inc.September 15, 2025 (same day)Pending
41Recording & Post-ClosingDelivery of recorded deed to BuyerFidelitas Title & Escrow, Inc.Post-closingPending
42Recording & Post-ClosingIssuance of final Owner's Title Insurance PolicyFidelitas Title & Escrow, Inc. / Sovereign Title Insurance CompanyPost-closingPendingPolicy amount: $58,500,000
43Recording & Post-ClosingVirginia Grantor's Tax payment filing confirmationFidelitas Title & Escrow, Inc.At closingPending$58,500.00
44Recording & Post-ClosingUpdate Loudoun County land records — transfer of Tax Map Ref. /95-4A-1///Fidelitas Title & Escrow, Inc.Post-closingPending
45Recording & Post-ClosingNotification to Vantage Power Cooperative of ownership change (if required by LLSA or site access)Calderwood & Harkness LLPPost-closingPendingVPC Service Application No. LSA-2025-0091
46Recording & Post-ClosingPost-closing bring-down title search confirmationFidelitas Title & Escrow, Inc.Post-closingPending
47Recording & Post-ClosingFinal settlement statement distribution to all partiesFidelitas Title & Escrow, Inc.Post-closingPendingCopies to Buyer, Seller, and respective counsel

[sheet: Proration Schedule]

ItemAnnual AmountProration PeriodDays — SellerDays — BuyerTotal Days in YearSeller's ShareBuyer's ShareNotes
Real Estate Taxes — Loudoun County (Stonebridge Parcel, Tax Map Ref. /95-4A-1///)74,050.00Jan 1, 2025 – Dec 31, 202525810736552,347.9521,702.05Assessed value est. $6,750,000; tax rate: $1.097/$100; annual tax: $74,047.50 (rounded to $74,050.00). Seller pays through Sep 15, 2025; if taxes unpaid at closing, Seller credits Buyer; if prepaid, Buyer reimburses Seller's overpayment
Stormwater / Drainage Fees — Loudoun County (if applicable)400.00Jan 1, 2025 – Dec 31, 2025258107365282.74117.26Applicable to undeveloped land; estimated based on Loudoun County stormwater management fee schedule
Utility Charges (metered water/sewer, if any)375.00Final meter reading at closing258N/AN/A375.000.00Undeveloped land — minimal or no metered utilities; Seller responsible for all charges through closing date based on final reading
Association / HOA Dues0.00N/AN/AN/AN/A0.000.00N/A — no HOA applicable to the Stonebridge Parcel
Total Prorations74,825.0053,005.6921,819.31Verification: $53,005.69 + $21,819.31 = $74,825.00 ✓

[sheet: Transfer Tax & Recording Fee Su]

Fee / TaxStatutory BasisRateCalculation BaseAmountPaid ByNotes
Virginia State Grantor's TaxVa. Code § 58.1-802$1.00 per $1,000 of consideration (or $0.50 per $500)58,500,000.0058,500.00Seller (Blackthorn Realty Group, Inc.)Standard seller obligation under Virginia law
Virginia State Grantee's Tax (Regional Congestion Relief Fee — Northern Virginia)Va. Code § 58.1-802.2 (applicable in NoVA localities)$0.15 per $100 of consideration58,500,000.0087,750.00Buyer (Stonebridge Campus Holdings LLC)Applicable in Loudoun County as a Northern Virginia locality
Loudoun County Local Recording Tax (Deed)Va. Code § 58.1-814$0.0833 per $100 of consideration58,500,000.0048,730.50Buyer (Stonebridge Campus Holdings LLC)Locally adopted rate per Loudoun County ordinance
Deed Recording Fee — Loudoun County Circuit Court ClerkLoudoun County Clerk's fee schedule$31.00 per page (estimated)N/A186.00Buyer (Stonebridge Campus Holdings LLC)Estimated 6 pages for Special Warranty Deed
Assignment Recording Fee (if recorded)Loudoun County Clerk's fee schedule$31.00 per page (estimated)N/A124.00Buyer (Stonebridge Campus Holdings LLC)Estimated 4 pages; Assignment and Assumption of PSA (if recorded)
State Writ Tax (if applicable)Va. Code § 58.1-805N/AN/A0.00N/ANot applicable to this transaction type
Total Transfer Taxes and Recording Fees195,290.50Sum of all items: $58,500.00 + $87,750.00 + $48,730.50 + $186.00 + $124.00 + $0.00 = $195,290.50

[sheet: Key Transaction Summary]

FieldDetail
TransactionAcquisition of Stonebridge Parcel
Property Description62.0 acres, NE corner of Belmont Ridge Road and Stonebridge Boulevard, unincorporated Loudoun County, Virginia 20148
Loudoun County Tax Map Reference/95-4A-1///
Current ZoningPD-IP (Planned Development – Industrial Park)
ZMOD ApplicationZMOD-2025-0038 (filed May 30, 2025; Board of Supervisors hearing October 2025)
SellerBlackthorn Realty Group, Inc. (Virginia corporation)
Seller Address112 East Market Street, Suite 400, Leesburg, VA 20176
Seller EIN54-1987234
Seller Virginia SCC Entity ID0412876-3
Seller PresidentDonald R. Whitaker
Seller General CounselPatricia Whitaker-Connolly
Seller's CounselWhitfield, Poole & Stratton LLP — Harrison Poole
Seller's Counsel Address305 Harrison Street SE, Suite 200, Leesburg, VA 20175
Buyer (Original PSA Party)Ironhaven Data Centers LLC (Delaware LLC)
Buyer HQ Address44680 Prentice Drive, Suite 200, Ashburn, VA 20147
Buyer EIN84-3291057
Buyer Virginia SCC Entity IDS7491283
Buyer CEOMarcus Thorne
Buyer CFOPriya Dasgupta
Buyer EVP DevelopmentLeonard Castellano
Assignee / Grantee (at Closing)Stonebridge Campus Holdings LLC (Virginia LLC, wholly owned by IHDC)
Assignee EINTo be obtained upon formation
Equity SponsorRidgeline Capital Partners Fund IV, LP (92% indirect interest through RCP Digital Holdings LLC)
Equity Sponsor — Managing PartnerJulian Hargrove
Ridgeline Fund IV Investment IDRCP-IV-2025-DC-07
Total Equity Commitment (Fund IV)$210,000,000
Buyer's CounselCalderwood & Harkness LLP — Douglas Fairchild (Responsible Partner), Cynthia Ho (Lead Associate)
C&H Matter No.1043-00002
C&H Environmental AssociateGrace Nakamura
Local Zoning CounselAshcroft & Wynn, P.C. — Thomas Ashcroft
Lender's CounselRedmond & Calloway LLP — Victor Redmond
Purchase Price$58,500,000.00
Price Per Acre$943,548 (rounded from $943,548.39)
Earnest Money Deposit (Total)$2,925,000.00 (5% of purchase price)
Earnest Money — First Tranche$1,462,500.00 (at PSA execution, April 15, 2025)
Earnest Money — Second Tranche$1,462,500.00 (at DD expiration, July 14, 2025)
PSA Execution DateApril 15, 2025
Due Diligence Period90 days from PSA execution
Due Diligence ExpirationJuly 14, 2025
Targeted Closing DateSeptember 15, 2025
Escrow Agent / Title CompanyFidelitas Title & Escrow, Inc.
Escrow Agent Address44121 Harry Byrd Highway, Suite 120, Ashburn, VA 20147
Title UnderwriterSovereign Title Insurance Company
Title Commitment Effective DateApril 3, 2025
Owner's Title Insurance Policy Amount$58,500,000.00
Deed TypeSpecial Warranty Deed
Governing LawCommonwealth of Virginia
Part of Larger ProjectStonebridge Data Center Campus — $600,000,000 total project budget; 96 MW critical IT load across 4 buildings
Related Transaction — Meridian Parcel19.4 acres from Meridian Acres LLC at $19,400,000; also closing September 15, 2025
Construction Loan$390,000,000 — Summit National Bank, N.A. (Admin Agent); Ref: CL-2025-VA-04418; closing target October 15, 2025
Construction Loan ContactKaren Ellsworth, Summit National Bank, N.A.
EPC ContractorTitan-McAllister Construction Group, LLC — GMP: $412,000,000
Environmental ConsultantPendleton Environmental Associates, Inc. — Dr. Renata Volkov
Surveyor / Civil EngineerLumen Ridge Engineering, PLLC — Carlos Esteban, PE
Geotechnical EngineerBrannigan Geotechnical Engineering, LLC — Neil Brannigan, PE
AppraiserGreystone Appraisal Partners, LLC — Janet Choi, MAI
Owner's RepresentativeKestrel Infrastructure Advisors, LLC — Diane Prescott
Land Use ConsultantCornerstone Land Use Consulting, LLC — Alan Mercer
Insurance BrokerNorthgate Insurance Brokerage, LLC — William Keane
Power UtilityVantage Power Cooperative — Service Application No. LSA-2025-0091