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. A residential real estate sale transaction usually begins at the time a broker obtains an agency contract in the form of a listing from the property owner.How do I fill this out? The listing is to include everything below: 10. Listing Contract completely filled out and signed properly. 11. A residential real estate sale transaction usually begins at the time a broker obtains an agency contract in the form of a listing from the property owner. Sale Associate must provide the disclosure form to the seller BEFORE entering into the listing agreement. No standardized form. Or excluded in the BDS will be in the agreement. Buyer. Date. How to fill out the California REALTORS Team Agreement Template?