cooperative project
(10) “cooperative project” means real estate (A) which has five or more residential cooperative units, in each residential structure, subject to separate use and possession by one or more individual cooperative unit owners whose interest in such units and in the undivided assets of the cooperative association which are appurtenant to the unit are evidenced by a membership or share interest in a cooperative association and a lease or other muniment of title or possession granted by the cooperative association as the owner of all the cooperative property, and (B) an interest in which is or has been offered for sale or lease or sold, or leased directly or indirectly, through use of any means or instruments of transportation or communication in interstate commerce or of the mails;