A listing agreement is a legally binding contract between the property owner and a real estate agent. What is included in a listing agreement?Many include a renewal clause, which provides an option to extend the listing period if both parties agree. Contract Formation: A listing agreement is a contract for services. It is not required to be in writing in order for it to be enforceable. Self-renewing clauses, also known as "evergreen clauses," are generally not allowed in listing agreements. A written listing agreement may NOT contain a A) selfrenewing clause. B) requirement for the broker to find a purchaser in order to receive a commission. Here to walk you through listing contracts like the contract 101. For example, we might gradually adjust or phase out existing leases and licenses as renewal dates come up.