SDAR Form Library: Broker Change Form, Both PDF and Online Submission, Lockbox Transfer, PDF File, Agent Notification of Change Form, Online Submission. 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.Contact me if you would like to find out more about the opportunities at EXP Realty. A listing agreement is a legally binding contract between the seller (you) and the real estate brokerage that helps you sell your home. A residential listing agreement is an employment contract between a property owner and a real estate broker. The listing agreement is the formal contract between you and your real estate agent, with important details laying out the process.