Legal due diligence: the liabilities that surface after closing

Bad deals are rarely discovered on signing day. They surface months later, when a debt nobody declared turns up, or a contract falls apart because the ownership changed. That late discovery almost always has the same root cause: legal due diligence that wasn't done, or was done superficially.

What doesn't show up on the financial statements

The numbers show what the company recorded. They don't show the labor lawsuit that hasn't reached a ruling yet, the clause that forces renegotiation with a key supplier if control changes, or the license that isn't transferable. That kind of liability only shows up by reviewing the legal structure, which is why legal due diligence isn't a closing formality.

Where they tend to hide

There are places where these liabilities show up more often:

• Contracts with change-of-control clauses.
• Accrued labor obligations.
• Expired regulatory permits.
• Corporate minutes that don't support decisions already executed.

None of those come up in a negotiation conversation; they come up when someone actually looks for them.

Timing changes everything

Discovering a liability before closing is a negotiating card: you adjust the price, ask for guarantees, or walk away. Discovering it after closing is simply a debt that's now yours. That's the entire difference, and it depends on when the due diligence gets done.