Get a comprehensive understanding of California real estate purchase and sale agreements with our indepth overview and free template. Seller agrees to sell to Buyer, and Buyer agrees to purchase from Seller, on the terms, conditions, warranties and representations set forth in this Agreement.Purchase and Sale Agreement. A purchase and sale agreement is a contract between a buyer and seller for transacting a property in exchange for a specific price. Learn details about the residential purchase agreement that will give you the power to feel confident when making an offer on a property. OFFER: A. THIS IS AN OFFER FROM________________________________________________________________________("Buyer"). You need to fill out the "AS IS" Residential Contract for Sale and Purchase to sell your house as is in Sacramento.