Discover the foundation for a successful and collaborative business journey, ensuring seamless transactions and mutual growth. This document will serve as an official document for Jim Butler Chevrolet, KIA, Mitsubishi or Auto Plaza to agree to purchase sellers vehicle.2. Odometer Declaration. A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services. Make sure you have a clear Vehicle Leasing Agreement. Documentation showing the tax collected per lease payment may be in the form of a statement from the lessor or a copy of the lease agreement. Section 2.01 Closing Transactions. ("Seller") agrees to sell to. It is also used to calculate use tax on motor vehicles brought into Texas that were purchased from a private-party out of state.