This guide will walk you through the paperwork for selling a house without a Realtor and various other steps that can give you a leg up. North Carolina requires those selling FSBO to fill out and file many documents and forms.Several of these documents are legally binding agreements. INTRODUCTION: These guidelines are provided to assist Broker and attorneys who are completing the Offer to Purchase and. A For Sale By Owner contract North Carolina must include: 1. The Purchase Price, 2. Untrue, in North Carolina Buyer Agency Agreements are required in order for an agent to represent a buyer.