A California purchase agreement contains all the provisions, disclosures, and general information needed to secure a binding contract. OFFER: A. THIS IS AN OFFER FROM________________________________________________________________________("Buyer").Use our template to outline the details such as the purchase price, earnest money deposit, contingencies, and other crucial aspects governing the transaction. This file contains detailed instructions for completing the NWMLS Form No. 21, a Residential Real Estate Purchase and Sale Agreement. Get a comprehensive understanding of California real estate purchase and sale agreements with our indepth overview and free template. The property address should be filled in at the top of the form.