OPEN HOUSE CANCELLED 5/3.  Your wait is over! Charm and light awaits you in this lovely Park Slope townhouse nestled on quiet 13th Street between 4th and 5th Avenues. Tastefully updated and ready for move-in, this legal two-family is currently configured as a single family and combines pre-war charm with modern convenience.  On the parlor floor, a graceful and open living room leads into a renovated kitchen featuring modern cabinetry, Viking range and stainless steel appliances. Upstairs, there are three bedrooms and a recently remodeled bath. The garden level is set up with a second living room, washer-dryer, renovated bath, guest area and home office and could easily be reconfigured as two or more real bedrooms.   The basement is partially finished and offers an abundant amount of storage space.Close to the F/G/R train at 9th Street, award-winning restaurants, shops, art galleries, the new Whole Foods and all that Park Slope and Gowanus has to offer! Move right in, expand or convert back to a two family  there are many opportunities with this flexible property.  Seize the rare opportunity to own an entire Park Slope townhouse for the price of a condo. This townhouse is not to be missed!