How the NAR settlement and changes to commission laws will change things for San Diego home sellers and buyers come August. I can clearly see through redfin and Zillow what the buyers agent commission is today.Prior to getting an agent, buyers will generally need to sign an agreement detailing how much their broker will be paid. LGI Homes welcomes brokers and agents at all of our new home communities. All listing agreements shall be made in the name of the Company. Well, first thing you'll most likely do is work with your lender to fill out an official mortgage application. Can a realtor sign a sales contract without a complete listing agreement? A buyer broker agreement is a contract that legalizes the relationship between a buyer and a broker. Furthermore, it is a legally binding contract. Before signing any agreement, it's important to do your due diligence on the agent.