How do I fill this out? In Ohio, a bill of sale is recommended to transfer ownership of a motor vehicle or boat.Use our Ohio bill of sale forms in order to legally buy or sell personal property like vehicles, guns, and boats in the state of Ohio. Is there a Purchase Agreement Template on the internet that someone has used to sell their boat? An Ohio boat bill of sale is used to certify the transfer of ownership in the sale of a vessel. Terms and Conditions for Purchase Orders with the Department of Purchasing. Whether you buy a new or a used boat, the best way to protect your interests is to outline the terms of the sale in writing.