An Arizona residential purchase agreement is a legal document outlining the terms and conditions for a buyer's purchase of residential property from a seller. Get up and running quickly with a master service agreement template Arizona.This downloadable template will get you selling in no time. A master purchase agreement is a legally binding contract between buyer and seller, and typically relates to buying and selling goods rather than services. Includes templates for Request for Quotation (RFQ), Request for Proposal (RFP), Request for Information (RFI), and Direct Contracts (eg Participating Addendum). At any time after the. How do I fill this out? Scope: This addendum, also referred to as the Contract, covers the NASPO ValuePoint.