Review a sample New York Exclusive Right To Sell Listing Agreement before you sign. What disclosure forms and listing agreements in NYC do agents need to worry about?Are you responsible for the purchase contract and other closing docs? A condo contract is a legally binding agreement between a potential buyer and a potential seller of a condominium unit. 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.