Assuming a contract of sale has been fully executed by both parties and the purchaser's down payment check has been deposited into the seller's attorney's escrow account... 99% of the time the broker will stop showing the property. However, sometimes (but rarely in Brooklyn) there could be reasons why an agent may want to continue to show a property, one being if the co-op has a really tough/difficult board and/or a history of denying applications to purchase.
Mitchell S. Feldman
Associate Broker/ Director of Sales
Madison Estates & Properties, Inc.
Office: (718) 645-1665/ Cell: (917) 805-0783