How do I fill this out? When selling a vehicle, the seller must sign and handprint their name on the proof of ownership document.We offer a highly customized artwork bill of sale forms on our site that you can download and print. Bill of sale from the sheriff, constable or other duly authorized executing officer showing the date of sale, name of purchaser, make and VIN of vehicle. You need to fill out and sign Section A. The buyer fills out Section D. Both Sections need to be notarized. Create a Pennsylvania motorcycle bill of sale from our attorneydrafted template so you can document the important details of your sale. This form is used to obtain a Pennsylvania Certificate of Title for vehicles not currently titled in Pennsylvania, or which were repossessed (1. Learn about bills of sale in Pennsylvania for vehicles, firearms, animals, etc. Next you write up a bill of sale (you can find forms on line or at stationery stores for that). This document will require notarization and may be required for registration.