A unit of OKO Group has paid nearly $48 million to buy out all the condominium unit owners in a building at the south end of Brickell, with plans to create a luxury condo tower, CBRE announced. Miami Waterfront Ventures, a division of the OKO Group, acquired all the condominium units at the 25 Bay Tower Condo, at 175 Southeast 25th Road. The 11-story building sits on nearly one acre on Biscayne Bay, CBRE said.    Read the article…………