If your Country does not require or offer the use of a particular form, you can use a generic boat purchase agreement, such as. B a boat purchase contract offered by: A boat purchase contract (also known as a boat purchase contract) is a document used to describe the terms of a transaction between a private seller and a buyer. It is a contract that is specific to a boat sale and can be used for a propelled or un propelled boat, as long as it is not also a vessel documented by the U.S. Government of the U.S. Coast Guard, which is named and numbered by a state (there are separate forms for the sale of a documented vessel). . . .