Shortly before closing, what counts is that the due diligence findings are secured in the contract and open red flags are resolved.
If you are shortly before closing, it is no longer about the broad review but about translating the existing findings cleanly into the contract. Identified risks belong in warranties, specific indemnities and, where appropriate, a purchase price adjustment or holdback.
Resolve open red flags before signing, because afterwards they are hard to catch through a general warranty. We compare the state of the review with the draft contract and close the gaps before you commit.