A real estate broker is responsible for the supervision and conduct of the real estate brokerage business. Broker shall market the Property to the best of their abilities in order to achieve the highest sales price feasible for the Seller.Broker shall make all. In New York State, real estate contracts are legally binding documents that outline the terms and conditions of a real estate transaction. This guide will help you to understand the changes and the proper way to fill out the forms. Review a sample New York Exclusive Right To Sell Listing Agreement before you sign. A New York real estate agent listing agreement is a written contract between a real estate broker and an individual regarding a property sale. The New York residential purchase and sale agreement allows a prospective homeowner to make a written offer to a seller on a residential property. This is a basic listing agreement or contract if you will uh between you the agent and the seller the homeowner. The real estate sale process in New York can be rather complicated, both practically and legally.