A bill of sale is recommended if you're buying a motor vehicle, boat, or livestock. The buyer and seller should meet at a notary, tag service, or motor vehicle dealer to ensure the title application is completed correctly.How do I fill this out? Top-rated car sale agreement templates. Easy to use, fill out, and sign. An advertisement agreement template is a helpful tool that specifies a lawful contract between the advertising agency and the business client. 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. This car purchase agreement template is a standard agreement made completely customizable for your individual needs. This form is used to obtain a Pennsylvania Certificate of Title for vehicles currently titled in Pennsylvania.