What is this form? Why should you sign it? The Buyer Representation Agreement is a legal document that formalizes the working relationship with a buyer’s representative, or brokerage and perspective client. Detailing what services, clients are entitled to and what the buyer’s rep expects from them in return. While the language used in the document is formal, homebuyers should view it as an important and helpful tool for clarifying expectations, developing mutual loyalty, and most importantly, elevating the services you will receive.