How do I fill this out? Owner states that this boat is sold free and clear of any liens, bills or encumbrances of any nature except as stated below.Formalize the boat purchase process with a customizable boat purchase agreement template that factors in key components for a successful transaction. 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. Transfer a boat's ownership with a seller warranty. Use our attorney-drafted boat bill of sale template to outline the terms and conditions clearly. What information should you include? The names, ID information (if required), and contact details for both the buyer and the seller. How to fill out the Boat Bill of Sale and Purchase Agreement?