Sales Manager Jacqueline Yaffe poses in the dining room of the Ritz Carlton residents model suite in Toronto May 1, 2012. By the end of this summer Toronto will have four projects, as Four Seasons, Ritz Carlton, Trump and Shangri-La open massive towers in a city where a red-hot market for all types of housing has brought rising concern about a real estate bubble. The granite-and-glass towers, including two of Canada's tallest residential buildings, are opening in quick succession, adding hundreds of hotel rooms and more than a thousand condominiums just as Canadian housing hype hits a fever pitch. Picture taken May 1, 2012. REUTERS/ Mike Cassese (CANADA - Tags: REAL ESTATE BUSINESS)