The condo, Unit #10J, is part of the 12-story 790 Riverside Drive condominium development, which was built in 1930.
Mr. Haehnen previously served as vice president of Citigroup Global Markets Inc. He also worked as a business analyst of operations at Deutsche Bank Securities.
He graduated from James Madison University and European Business School Oestrich-Winkel.
According to BlockShopper.com, there have been 21 condo sales in Washington Heights during the past 12 months, with a median sales price of $400,000.
Address: 790 Riverside Drive, Unit: 10j
Buyer(s): Zilberman, Michael, Lubarsky and Lily
Seller(s): Haehnen and Boris
Sale date: Nov. 23, 2010