On a commercial acquisition, insurance is the piece buyers most often leave until last, and it is the piece most likely to create a closing-day scramble. A flood determination, a lender’s valuation requirement, or a loss-history surprise can surface days before funding. Running insurance due diligence early turns that scramble into a checklist.
Value the building the way the lender will
Start with the replacement-cost valuation, because the lender will require coverage to a replacement-cost figure that may exceed your purchase price, and a coinsurance clause can penalize you if the limit is short. Knowing the real reconstruction cost early prevents a last-minute jump in required limits and tells you the true cost of insuring the asset.
Check flood, catastrophe, and code exposure
Pull the flood determination and the catastrophe profile before closing, since flood in a mapped zone is a lender requirement and a frequent late surprise. For older buildings, factor in code-upgrade exposure and any environmental history, which a pollution review can surface. These are the issues that derail closings when found late.
Read the seller’s policy and loss history
The prior owner’s policy and loss runs are valuable diligence: they show how the building was insured, at what value, and what has gone wrong, recurring water losses, roof claims, or frequency that signals a deeper issue. You will place your own coverage, but the history informs what the building genuinely needs and how it will price.
Bind coverage to be effective at closing
Arrange the program during the contract period and bind it effective at the closing, so the building is protected the moment it transfers and the lender’s requirements are satisfied at funding. Doing this in advance, rather than on closing day, is the difference between a smooth transfer and a scramble. An acquisition and refinance due diligence review runs this end to end.