Real estate data rooms
CRE Due Diligence Checklist: Every Document, Buy-Side and Sell-Side
The commercial real estate due diligence checklist — title, environmental, physical, financial, and tenant documents — organized for the deal data room.
Quick answer
CRE diligence organizes into six document families: title and survey, entitlements and zoning, environmental and physical condition, financial performance (rent roll, T-12, taxes, insurance), tenant documents (leases and estoppels), and service contracts. Sellers who pre-build the room to this structure close faster, because the buyer's lender will request the identical set.
Host it in a room with per-deal economics — the real estate data room ranking compares options from free tiers to flat-rate deal rooms.
The six document families
| Folder | Key documents | Watch for |
|---|---|---|
| 01 Title & survey | Title policy and commitment, ALTA survey, recorded exceptions, easements | Unreleased liens; easements that constrain use |
| 02 Zoning & entitlements | Zoning letter, certificates of occupancy, permits, variances | Non-conforming use status; open permits |
| 03 Environmental & physical | Phase I (Phase II if triggered), PCA/engineering report, roof and mechanical records, ADA review | Recognized environmental conditions; deferred capex |
| 04 Financial | T-12, 3 years operating statements, rent roll, tax bills, insurance, utility history, capex history | Rent roll vs. lease discrepancies; tax reassessment risk |
| 05 Tenant documents | All leases and amendments, estoppels, SNDAs, security deposit schedule, delinquency report | Termination options; co-tenancy clauses; expirations wall |
| 06 Contracts & operations | Service contracts, property management agreement, warranties, litigation summary | Contracts that survive closing; auto-renewals |
The rent roll is the document of record — treat it that way
Most price renegotiations start with a gap between the rent roll and the underlying leases: a burn-off concession not shown, an expired lease still listed at contract rent, a side letter nobody filed. Before the room opens, tie every rent roll line to its lease — the exercise takes a day and protects the price. Our rent roll sharing guide covers the disclosure mechanics.
Same discipline for the T-12: reconcile it to bank deposits or statements, and annotate one-time items before the buyer's analyst finds them unannotated.
Sell-side room preparation
Order updated title commitment and survey before marketing
Commission or refresh the Phase I — stale ones stall lenders
Tie rent roll to leases; annotate the T-12
Collect estoppels early; they gate closing more than anything
Stage access: teaser → OM under CA → full room under LOI
Watermark OM and financials; per-buyer links
Buy-side: run the checklist as a tracker
Buyers should mirror this checklist as a request tracker: every item has a status (received, outstanding, follow-up), and the weekly diligence call runs off the tracker rather than memory. When the seller's room is organized to the same six families, the tracker maps one-to-one and nothing slips into the closing week.
Where the seller's materials arrive as unstructured scans, a room with OCR — a strength of CapLinked among the providers we track — makes decades-old title exceptions searchable instead of skimmable.
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FAQ
How long does CRE due diligence take?
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Typical contract diligence periods run 30-60 days, with financing adding more. The slow items are third-party reports (Phase I, PCA, appraisal) and estoppels — order the reports immediately at contract and start estoppels the same week.
What's the most commonly missing document?
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Lease amendments and side letters. The base leases exist; the amendment trail is what gets lost across ownership changes — and it's where the terms that break underwriting hide.
Should the seller share the Phase I or let the buyer order one?
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Share what exists — buyers and lenders will order their own reliance versions regardless, and a clean prior Phase I speeds their consultant's work. Concealing a known report reads terribly if it surfaces.
Does a small deal need this whole checklist?
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The families stay the same; the depth scales. A single-tenant NNN deal might have five leases documents total — but title, environmental, financial, and tenant folders still get opened by every lender.
Sources
These sources were checked for public plan details, security controls, or category context. Confirm the final offer with the vendor before you open a live room.