Definition
Due Diligence Period
Also called: inspection period
The due diligence or inspection period is the contractual window after signing when the buyer can investigate the property and often cancel with their deposit back. In investor contracts it's where offers quietly die or get renegotiated — the shorter it is, the more real the offer.
Retail contracts typically run 7–15 day inspection windows; serious as-is cash buyers often need less, since their walkthrough happened before the offer. A long period with a fully refundable deposit gives the buyer a free option to tie up the house while shopping the deal.
Watch for the re-trade: a strong offer, a long inspection period, then a 'surprise' finding and a price cut when the seller is committed. Shorter windows, non-refundable deposits after inspection, and competing backup buyers are the structural defenses.
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