N.Y. General Business Law § 738
1. Prior to the purchase or lease of an automobile, the consumer and the automobile broker business shall enter into a contract. Every contract between a consumer and an automobile broker business for the purchase or lease of an automobile shall be in writing, shall be dated, shall contain the street address of the place of business of the automobile broker business, the registration number issued to the automobile broker business pursuant to section four hundred fifteen of the vehicle and traffic law and the name and address of the consumer and shall be signed by the consumer and by the automobile broker business. Every contract shall comply with the requirements set forth in this section and contain the following: