Two months after the Chrysler Building was put up for sale in January, Aby Rosen, the flashy developer and co-founder of RFR Realty, emerged as the buyer behind a $151 million deal that surprised many seasoned real estate professionals. The building’s seller, a secretive sovereign wealth fund known as the Abu Dhabi Investment Council (the Council), took an 80 percent discount on the $800 million investment it had made more than a decade earlier. The […]