Price is not the same as cash, and I trusted the paperwork.
It was a tax-service franchise. I had 3 territories.
I sold it on seller financing. About 30% cash up front and the rest in 4 installments. We closed inside a month, which felt great at the time.
Here's what I didn't do.
I didn't ask for a personal guarantee. I didn't put in a clause that let me take the business back if the buyer stopped paying.
He stopped paying.
He owed me a lot of money, and I had nothing to reach for.
There's a second part that still bothers me more than the money. I never negotiated anything for my staff. He fired a bunch of them in the first week.
I hadn't even thought to ask.
The lesson
It isn't "get a lawyer." It's that the deal isn't finished when you sign. It might not be finished for years. Everything you didn't ask for is still sitting there, waiting for you. The price matters. So does the cash at closing, the guarantees, the protections, and every term that follows you after the deal is done.