Commercial Real Estate Due Diligence Checklist

Conor Meyers — Co-Founder & Business AttorneyHas built and run businesses; advises owners on contracts, transactions, and risk. About Conor →

Diligence is not a formality you complete. It is the only chance you get to find out what you are buying.

A commercial property purchase gives the buyer a window to investigate and, usually, to walk away. What gets done in that window determines whether the buyer discovers problems before closing or owns them afterward. A property due diligence timeline should be built backward from closing, because several workstreams depend on third parties who do not share your urgency.

We handle these matters for growth-stage companies in Idaho and California. This is general information — not legal or tax advice on a specific situation.

Order everything on day one. Waiting is what costs the window.

Title, survey, and recorded matters

Order the title commitment immediately and obtain every underlying exception document. Read each against your intended use rather than accepting the one-line description.

Commission a current survey and overlay it on the title exceptions. This is where encroachments, access problems, and easements running through the area you planned to develop actually surface. Recorded interests in Idaho are governed by Title 55.

Title tells you what exists. Survey tells you where it sits.

Environmental assessment

A Phase I environmental site assessment is standard on commercial acquisitions and generally required by lenders. It follows the all appropriate inquiries standard published by the EPA, and completing it properly can support a defense to certain federal liability.

Where the Phase I identifies recognized environmental conditions, a Phase II involving sampling may follow. That sequence takes time, which is why environmental work should be commissioned on day one rather than after title review concludes.

Environmental runs on its own clock. Start it first.

Zoning, entitlements, and physical condition

Zoning verification during due diligence means confirming the current classification permits your intended use, checking whether the existing structure is conforming or legally nonconforming, and identifying any required approvals.

Physical inspection covers structure, roof, HVAC, electrical, plumbing, ADA compliance, and any deferred maintenance. A property condition assessment produces a cost estimate for near-term capital needs, which belongs in the price discussion rather than in a surprise the year after closing.

Nonconforming status is fine until the building burns down.

Leases and service contracts

Rent roll review commercial means reading the actual leases, not the summary. Confirm rent, escalations, term, renewal and expansion options, rights of first refusal, expense pass-throughs, and any landlord obligations that remain outstanding.

Service contract review property purchase is routinely overlooked. Landscaping, security, elevator maintenance, and management agreements may be assignable, terminable, or neither, and a buyer can inherit an above-market contract with years to run. Tenant estoppel certificates confirm the lease facts directly from the tenants.

Read the leases. The rent roll is a summary of someone else’s reading.

Financial verification and closing readiness

Verify operating expense history against invoices rather than accepting a schedule. Confirm the tax assessment and whether a reassessment is likely to follow the sale, since that can change occupancy economics materially.

Survey review before closing should conclude in time for objections to be raised and cured within the periods the agreement provides. Lender conditions run alongside — the FDIC’s resources reflect the standard institutional requirements — and financing timelines should be confirmed early.

An objection right you discover after the deadline is not a right.

Building the checklist around the property

No two commercial properties need the same diligence. A single-tenant industrial building on a slab with a twenty-year lease raises different questions from a multi-tenant retail center with fifteen leases, shared parking, and a reciprocal easement agreement. Start from the property type and the intended use, then work outward to the workstreams each implies.

Two categories deserve attention because buyers routinely underweight them. Entitlement risk matters wherever the plan involves changing use, expanding, or building — approvals run on public hearing calendars that no purchase agreement can accelerate. And tenant estoppel certificates, on a multi-tenant property, are the only way to confirm the rent roll from the people actually paying it, which is why buyers make delivery a closing condition rather than a diligence item.

Diligence scope should follow the property, not a generic template.

A simple plan to get a legal partner in your corner

Owners who bring in attorney for a commercial property purchase early almost always pay less than those who call one afterward.

The engagement at a glance

A three-step path from first call to ongoing protection.

Frequently asked questions