The Insurance Diligence That Reprices Deals in the Final 72 Hours

Roughly one in three M&A disputes in North America starts with an alleged breach of a seller's representations and warranties, according to the ABA. That single figure explains why insurance diligence has stopped being a back-office task and started moving the purchase price.

By the time a deal reaches signing, the reps package, the R&W policy, and the target's own coverage tower have usually been reviewed by three different workstreams that rarely reconcile with each other. When they finally do, in the last week before close, the numbers move. Sometimes it's the retention. Sometimes it's the tail. Sometimes it's a hole in the target's claims-made coverage nobody caught until the underwriter asked. What follows is where that late-stage repricing tends to come from, and how to see it earlier.

R&W Policies Are Repricing Themselves Mid-Process

The R&W market softened for years, and buyers got used to that. It has since firmed. Numbers that felt like guardrails a year earlier are now moving targets.

That matters because underwriters quote off a preliminary read of the deal, then reprice once diligence reports arrive. If your Q of E slips, or the data room adds material contracts late, the binder you saw at LOI is not the binder that shows up at signing. Build a cushion into the model for that drift, and demand a fresh indication from the broker the week specific exclusions are being negotiated, not after.

The Target's Own Coverage Tower Is Where Gaps Hide

R&W insurance covers breaches of the reps. It does not backfill a target that was underinsured going into the deal. Most operating policies are written on a claims-made basis, meaning the claim must be reported during the policy period, and a practitioner explainer from Wyrick Robbins walks through why a tail here only extends the reporting window, not the incident window. If a pre-closing act surfaces after the policy lapses and no tail was bought, the claim has nowhere to go.

That's the diligence finding that quietly reprices deals. When counsel spots an uncovered exposure in the target's program, buyers push for a reserve, an escrow adjustment, or a purchase-price chip. Sellers who mapped their commercial lines cleanly before the process, often with help from a broker who handles business insurance programs, tend to avoid that surprise.

D&O Tail Coverage Gets Papered Late and Costs More Than People Expect

The D&O tail is the coverage everyone agrees is standard and nobody sizes early. Six years is customary, and pricing runs high relative to the underlying premium. Common issues that show up in the final drafting round:

• Premium sticker shock. Tail premiums are typically quoted as a multiple of the expiring annual premium, and that multiple is larger than most CFOs expect the first time they see it.
• Coverage carve-outs. A tail endorsement may keep D&O but drop employment practices, fiduciary, or fiduciary-adjacent coverages the target actually relied on.
• Who pays. The purchase agreement should say plainly whether buyer or seller binds and funds the tail, and for how long. Vague language here almost always gets negotiated at 11 p.m.

Deals rarely fall apart over insurance. They just get a little more expensive, a little later, than they needed to.