We had three problems when we closed on ours:
1) The Broker told use a personal check was fine!! Not!!!
2) When a contract is written on a vessel the owner can not use the vessel for recreational purposes, only move it to an agreed location if unforeseen circumstances arise, such as a storm. After we took possession I down loaded the tracks from the chart plotter and it show all the places the owner took the boat for their last flings, this was not cool. The motor had another 10 hours on it as well.
3) The listed equipment on the sale was different from the equipment left on the boat. We had to track the previous owner down and press them to give us what was agreed upon.
Bottom line...On the day of closing and just before you go the the table, go down to the boat and go over the equipment very carefully.