INTRODUCTION: These guidelines are provided to assist Broker and attorneys who are completing the Offer to Purchase and. The purchase contract is the most important document in any real estate sale.It must reflect the entire agreement between the buyer and seller. A For Sale By Owner contract North Carolina must include: 1. The Purchase Price, 2. This document includes the legal description of the property, the purchase price, closing costs, and financing conditions. INTRODUCTION: These guidelines are provided to assist agents and attorneys who are completing the Offer to Purchase and. To fill out this form, gather all necessary information about the property and parties involved. Ensure that you understand the terms outlined in the contract. A contract for selling a home is a legally binding agreement and one of the most important documents in a real estate transaction.