A Pennsylvania vehicle bill of sale is a legal document formalizing the sale and purchase of a motor vehicle between a buyer and seller. Learn about bills of sale in Pennsylvania for vehicles, firearms, animals, etc.Residents of Allegheny County must pay an additional. A Pennsylvania boat bill of sale is a document used to demonstrate a finalized transaction between a boat seller and buyer. 1. Enter the Buyer and Seller's details. A Pennsylvania boat bill of sale is a legal document that records the transfer of ownership of a vessel in the State of Pennsylvania. Select Jurisdiction. A Pennsylvania boat bill of sale is a legal document that records the transfer of ownership of a vessel in the State of Pennsylvania. Completing an AOP form will not change a child's name on the birth certificate. 5. These forms will be useful when filing required documents related to estates of deceased or incapacitated persons.