For more information, contact customer service at . Forms are available online at dol.wa.Access bill of sale form templates and learn how to transfer ownership of vehicles, boats, firearms, and other high-value personal items in Washington. The forms include a property description, purchase price, date of sale, and other terms of the transaction. Gov or at any vehicle licensing office. Create a Washington bill of sale to document the transfer of ownership for vehicles or other personal property. What information is required to complete a Washington bill of sale?