Curious about the paperwork for selling a house without a Realtor? Contact a local title agency.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. We aren't involving agents, and I need to draft a purchase agreement. Is my best option to approach a local attorney with real estate experience? When it comes to filling out a real estate purchase agreement, several key players are involved: buyers, sellers, real estate agents, and attorneys. So, you could go to your real estate attorney and have them draw up the contract. The seller drafts the contracts themselves.