When selling a vehicle, the seller must sign and handprint their name on the proof of ownership document. A bill of sale is recommended if you're buying a motor vehicle, boat, or livestock.How to fill out the Pennsylvania Motor Vehicle Bill of Sale Form? 1. Write the vehicle details such as make, model, year, and VIN. 2. The Pennsylvania bill of sale form acknowledges the transfer of possession of a piece of personal property for an agreedupon sum of money. How to fill out the Pennsylvania Motor Vehicle Bill of Sale? General Bill of Sale Reports the sale and transfer of any personal property transferred between two individuals. Download: PDF, Word (. A Pennsylvania motor vehicle bill of sale is evidence of a vehicle's transfer. Use our template to build your vehicle bill of sale.