This FSBO paperwork is needed as soon as you accept an offer, so it's useful to have a purchase agreement onhand that you can fill out quickly. Curious about the paperwork for selling a house without a Realtor?It depends on your locale but even in very regulated, a HCOL area, and litigious California, buying a house without a realtor is possible. Worried about paperwork when selling a house without a realtor? Our complete guide breaks down essentials before, during, and after an offer. Homebuyers often ask: "Do I need a Realtor to buy a home? ". We are going to show you how to buy a California home without a Realtor. Your actual question was "do you need a license to fill out a purchase agreement in Ca." The answer is no. You need the license to use CAR forms. You must disclose any issues with your house.