Use this form to gather necessary information when you sell your vehicle or vessel. Common forms and documents you will use in transactions.This is paperwork to use with a Purchase and Sale Agreement. 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 first step is the details. Scroll down to the bottom of this section to define the purchase price, offer date, expiration date, and closing date. This is a basic tutorial on writing up an offer for a WA single family home only. Secure your vehicle vessel sale with our Washington Bill of Sale Template. Easy to use, compliant, and ready for download. A quick training on how to write up an offer in a competitive situation when you represent the buyer.