This form will express the terms of the purchase (purchase price, closing date, etc.) that you are proposing to the seller. INTRODUCTION: These guidelines are provided to assist agents and attorneys who are completing the Offer to Purchase and.This document includes the legal description of the property, the purchase price, closing costs, and financing conditions. A For Sale By Owner contract North Carolina must include: 1. The Purchase Price, 2. A North Carolina real estate contract is a contract that is negotiated between a buyer and a seller to facilitate the sale of property.