Ms. Rosengarten joined Leslie Garfield Real Estate in 1996. Throughout her years at Leslie Garfield, her emphasis and area of expertise has been the Upper East Side townhouse market, more specifically the Yorkville area where she has sold a significant number of townhouses. Some noteworthy recent sales have included the famed Waterfall Mansion at 170 East 80th Street, and the Mica Ertegun Estate at 121-125 East 81st Street. Additionally, she recently sold a large condominium apartment located at 120 East End Avenue, a large two bedroom unit at the Hampshire House at 150 Central Park South with sweeping views overlooking the park, as well as a sprawling co-op in Estate condition at 114 East 72nd Street. Recently she also sold 46 East 82nd Street, 16 East 82nd Street, 119 East 95th Street and 50 East 81st Street. Ms. Rosengarten takes great pride in handling all aspects of her business personally including attending all her own showings, and overseeing all aspects of the sales process from start to finish. This includes taking personal responsibility for ensuring that all information on her properties are conveyed with absolute clarity and precision to buyers and real estate agents. Communication is a key element to effectively selling a property. This includes responsiveness to buyers, and fellow agents in a timely fashion and providing material that is requested quickly and efficiently. Prior to entering the real estate field, Ms. Rosengarten had a successful career as a social worker and received her degree from Hunter College School of Social Work. She received her undergraduate degree from the University of Wisconsin/Madison. Ms. Rosengarten grew up in Greenwich Village and the Upper West Side and spent most of her life living in Manhattan.