Learn how to fill out a listing agreement properly for Realtors in Texas! Reach out if you need assistance.The listing firm is that is the exclusive right to sell. A listing agreement is essentially an employment contract between two parties and it is legally binding. Listing Agreements Exclusive Right to Sell Exclusive Agency Open Listing Net Listing Buyer Agency Agreements. I am a sales agent and am not sure how to fill out the listing agreement form. It is the obligation of a license holder to be knowledgeable and competent as a real estate brokerage practitioner. Fill out the documents, upload photos, and provide a description.