The Williams sisters,  champions on the court are adding to their winnings after selling their apartment at 28 W 38 street for a cool $750k profit about 10 years after buying it. They never really got around to furnishing the apartment according to NYDN. The apartment was set up as a 1 bedroom but could have been converted to a 2 or even 3 bedroom apartment is located in the Wheeler building which is a co-op that allows pied-a-terres and pets.