A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services. A vehicle sales agreement is a lawful arrangement summarizing the terms and conditions of a vehicle sale between a customer and a seller.An Arizona motor vehicle bill of sale is part of the vehicle registration process. You can use our free template to create your document. This car purchase agreement template is a standard agreement made completely customizable for your individual needs. This Master Sales Agreement (the "Agreement") is entered into between the buyer listed on the applicable Purchase Order ("Buyer") and Calimetrix, LLC. Bill of Sale ; Library File Link. There is no cooling down period in Arizona or automatic right to rescind an agreement for the sale of a car. Seller Name (first, middle, last, suffix). The Lessee is entitled to a complete copy of this Lease.