A listing agreement is a legally binding contract between a homeowner and the real estate agent or broker who will be listing the property for sale. The Participant must take each of the following steps: (i) The Participant must first establish with that consumer a lawful broker-consumer relationship.These templates may assist businesses in preparing solicitation responses and doing business with City of San Antonio. A corporate governance agreement is a legally binding contract that governs the working relationship between a company and its shareholders. Do I need a signed listing agreement to enter a listing in the PLD? The San Antonio Board of REALTORS® is your primary resource when it comes to finding a REALTOR® and buying and selling in San Antonio and the surrounding area. What is a Listing Agreement? A listing agreement is a contract between a property owner and a real estate agent who the owner hires to act as their broker.