Commercial real estate services firm Colliers ABR announced that it consolidated its ownership structure under one holding company with Colliers Turley Martin Tucker, Colliers Pinkard and Cassidy & Pinkard Colliers, at the beginning of the month. The holding company’s portfolio totals 300 million square feet in property management, 210 million square feet of space for lease and $5 billion in capital markets transactions annually. The holding company will continue as a member of Colliers International, which has 293 offices in 61 countries. Meanwhile, FirstService Corp., a majority owner of Colliers International, just acquired a 65 percent interest in commercial brokerage firm GVA Williams Real Estate. TRD