An Ohio boat bill of sale is used to certify the transfer of ownership in the sale of a vessel. How do I fill this out?The form will identify the buyer and the seller, describe the vehicle changing hands, and recount the terms of the transfer of ownership. Is there a Purchase Agreement Template on the internet that someone has used to sell their boat? The Ohio boat bill of sale form concretizes the exchange of a vessel for a financial sum within a formal written agreement. The Ohio boat bill of sale is designated for a buyer and seller seeking to create a legal contract for the sale of a vessel. What information should you include? The names, ID information (if required), and contact details for both the buyer and the seller.