A listing agreement is a contract between homeowners and brokers that legally establishes how a realtor will find a property buyer on the seller's behalf. The listing agreement is a contract that lays out specific, agreedupon terms, giving the real estate agent permission to market a home to buyers.A listing agreement is a contract between a property owner and a real estate broker authorizing the broker to represent the seller and find a buyer. The purpose of the Listing Agreement License Language is to have the seller grant to the broker the rights necessary for the broker to use the listing content. A listing agreement is not an enforceable contract unless it contains: a. The street address of the property b. The Seller Disclosure Statement. 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. At the same time, though, the seller turns out to be unable to provide marketable title. The listing agreement is a binding contract between the seller and the listing real estate firm.