A Bill of Sale releases interest in a vehicle. A Certificate of Title or other ownership documents must accompany this form.Bid prices must remain firm for the full term of the Contract. In the case of error in the extension of prices in the bid, the unit prices will govern. Get up and running quickly with a master service agreement template Nevada. This downloadable template will get you selling in no time. A vehicle sales agreement is a lawful arrangement summarizing the terms and conditions of a vehicle sale between a customer and a seller. The procedures for the seller and buyer to complete a Nevada vehicle title in a private party sale. What must be signed. A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services.