A For Sale By Owner contract Maryland must include: 1. The Purchase Price, 2.This FREE guide provides all the information you need to successfully sell your house without a real estate agent in 2024! The following is a list of recommended documents sellers should consider having on-hand before you even have an offer. A Maryland residential purchase agreement is a contract that binds a buyer and a seller for the sale and transfer of real estate. A Maryland purchase agreement records the negotiated terms of a real estate transaction. The buyer or seller can use this form to make an offer. Elements of a FBSO Contract: 1. Name the parties in the contract.