A For Sale By Owner contract North Carolina must include: 1. The Purchase Price, 2.This form is not a contract. Signing this disclosure only means you have received it. North Carolina requires those selling FSBO to fill out and file many documents and forms. Several of these documents are legally binding agreements. 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.