New York requires those selling FSBO to fill out and file many documents and forms. Several of these documents are legally binding agreements.A For Sale By Owner contract New York must include: 1. The Purchase Price, 2. This guide will help you to understand the changes and the proper way to fill out the forms. The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as. Throughout the transaction you may receive more than one disclosure form. The law may require each agent assisting in the transaction to present you with this. Register for NYSAR's FREE Professional Standards Training. Under new rules, potential buyers may now be responsible for paying their agent's commission.