The completed form will include a description of the watercraft, the purchase price, and both parties' signatures. Owner states that this boat is sold free and clear of any liens, bills or encumbrances of any nature except as stated below.If you're purchasing or selling a boat in New York, use a NY Boat Bill of Sale to prove a transfer of ownership has occurred. Considering selling or buying a boat with or without trailer? Take a look at 41 boat bill of sale forms and download a suitable one . Section J Signatures. Generally where things are clearly spelled out in the Contract, the Contract terms will win out if there is a dispute.