Due Diligence in Commercial Real Estate: What Investors Should Review Before Closing
- Jul 22
- 3 min read
Once a purchase agreement has been executed, one of the most important phases of a commercial real estate transaction begins: due diligence.
Due diligence gives buyers the opportunity to thoroughly evaluate a property, verify information provided during the marketing process, and confirm that the investment aligns with their expectations before closing. Rather than searching for problems, the goal is to gain a complete understanding of the property so informed decisions can be made.
While every transaction is unique, most commercial real estate due diligence follows a similar framework. Understanding what should be reviewed during this period can help investors prepare for a smoother transaction and make more confident investment decisions.

What Is Due Diligence?
Due diligence is the period during a commercial real estate transaction when buyers investigate and verify all aspects of a property before finalizing the purchase.
Depending on the purchase agreement, this review may include:
Financial records
Existing leases
Physical property condition
Environmental considerations
Title and survey
Zoning and land use
Insurance information
Financing requirements
The scope of due diligence varies by property type, investment strategy, and transaction complexity.
Review the Property's Financial Information
One of the first steps is confirming the property's financial performance.
Investors should review:
Historical operating statements
Rent rolls
Net Operating Income (NOI)
Operating expenses
Vacancy history
Capital expenditures
Utility costs
Verifying these records helps ensure the property's financial performance aligns with expectations established during the initial evaluation.
Examine Existing Leases
For income-producing properties, lease review is one of the most important components of due diligence.
Key items include:
Lease expiration dates
Renewal options
Rent escalation provisions
Security deposits
Tenant responsibilities
Lease amendments
Outstanding concessions
Understanding lease obligations provides valuable insight into future income stability and potential risks.
Evaluate the Physical Condition
A thorough inspection helps buyers understand the property's current condition and future maintenance needs.
Areas commonly reviewed include:
Roof
HVAC systems
Electrical systems
Plumbing
Structural components
Parking areas
Building exterior
Interior finishes
Property inspections can also identify deferred maintenance or capital improvements that may affect future operating costs.
Review Environmental Reports
Depending on the property and its historical use, environmental reviews may be recommended or required.
These may include:
Phase I Environmental Site Assessments
Phase II investigations (if necessary)
Hazardous material evaluations
Environmental compliance documentation
Environmental due diligence helps identify conditions that could affect ownership, financing, or future redevelopment.
Confirm Title and Survey
Title review helps ensure ownership can be transferred without unexpected issues.
During this process, buyers often review:
Ownership history
Easements
Encumbrances
Access rights
Legal property description
Existing survey
Understanding these items helps avoid surprises after closing.
Verify Zoning and Land Use
Buyers should confirm that the property's current and intended use complies with local regulations.
This review may include:
Existing zoning designation
Permitted uses
Development restrictions
Parking requirements
Future planning considerations
Zoning compatibility is especially important for owner-users and redevelopment opportunities.
Review Insurance and Risk Considerations
Insurance requirements should also be evaluated before closing.
Investors may review:
Existing insurance coverage
Claims history
Flood zone status
Property-specific risks
Estimated insurance costs
Understanding insurance obligations helps buyers better estimate ongoing ownership expenses.
Confirm Financing Requirements
During due diligence, financing should continue moving toward approval.
Buyers should verify:
Loan terms
Appraisal requirements
Debt Service Coverage Ratio (DSCR)
Loan-to-Value (LTV)
Required documentation
Closing timeline
Maintaining communication with lenders throughout this period helps reduce delays.
Organize Findings Before Closing
As due diligence progresses, buyers should organize their findings and determine whether any issues require additional review or negotiation.
This may include:
Repair requests
Seller credits
Updated financial assumptions
Timeline adjustments
Contract modifications
The goal is to ensure buyers fully understand the investment before proceeding to closing.
How We Help Buyers Navigate Due Diligence
Commercial real estate due diligence involves many moving parts, from financial analysis and lease review to inspections, financing, and coordination with multiple professionals.
Our team works closely with buyers throughout the due diligence process to help organize information, identify important considerations, communicate with transaction partners, and support informed decision-making before closing.
Final Thoughts
Due diligence is one of the most valuable stages of a commercial real estate transaction. It provides buyers with the opportunity to verify information, better understand the property, and confirm that the investment aligns with their objectives before completing the purchase.
A thoughtful due diligence process not only helps reduce uncertainty—it also provides the confidence needed to move forward with one of the most important decisions in a commercial real estate transaction.
Written by LevRose CRE with assistance from: LevRoseCRE.(2024)
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