DiligenceNegotiation & Leverage
Reverse Due Diligence
Also known as: reverse DD, buyer vetting, seller-side diligence on the buyer
The seller's own investigation into the buyer — how they've treated prior portfolio companies, founders, earnouts, and escrows. The flip side of the buyer's diligence, and a founder's best defense against a buyer who looks good on paper but behaves badly after close.
WHY IT MATTERS
Diligence is almost always framed as something done to the seller. Reverse due diligence turns it around: before signing, the founder investigates the buyer with the same rigor the buyer applies to them. For a financial buyer, that means asking how prior deals actually went — did earnouts get paid, were escrows released cleanly, did rollover equity ever reach liquidity, how were founders treated once the check cleared?
The signal is in the pattern, not the pitch. Call founders from companies the buyer has already acquired; the ones who'll talk candidly tell you more than any data room. This matters most precisely when leverage is weakest — a founder who has to sell is the one most exposed to a buyer who games the post-close mechanics, and the one least likely to do the homework. A buyer's track record with people in your exact position is the most reliable predictor of how your own deal plays out after closing.