I went to buy a motorcycle once. Met the guy at his nice house. All seemed on the up but he was jumpy and told me that if I like the other bike in the garage, he would throw it in for an extra $250. I fell for it 'cause it was just too great a deal. He couldn't find the pink slips, but I made him sign a Bill of Sale.
Turns out his soon ex-wife and her brothers were on their way there to take everything.
I spent many hours with Bank of America and Wells Fargo sorting out releases before I got clear title on the bikes.
I just wish I had grabbed the ski boat and jet ski too since I would have been at the same banks anyways.