This guide provides an in-depth look at C.A.R's purchase agreement with step-by-step information about how to complete the RPA form. You'll need to sign a residential purchase agreement, make an offer, possibly put down a deposit, conduct inspections and close the sale.The agreement requires sellers to disclose information about the property's condition and any known defects. This is a tutorial on the California residential purchase agreement. My main focus is to show you car forms and how to get into that system and how to create a transaction. A vehicle purchase agreement represents the document that lists the legal obligations of both the buyer and seller. CAR (California Association of Realtors) residential purchase and sale agreements are widely used in real estate transactions throughout California. Free to C.A.R. Members Enter Code FREE25.