Partner in the firm’s Real Property and Planning Group in Toronto. Practice covers a full range of transactions, including leasing, acquisitions, development and financing. Acts for both large and small developers, pension funds and financial institutions. Practice also includes insolvency and realization work related to real property. Fellow and member of the Board of Regents of the American College of Mortgage Attorneys. Member of the Advisory Board of the Georgetown Law School Advanced Commercial Leasing Institute. Appears in all editions of The Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada in the area of Property Development. He is recognized in the 2002–2013 editions of Chambers Global: The World’s Leading Lawyers in the area of real estate law. Costin is also listed in the 2015 edition of The Best Lawyers in Canada, in the fields of real estate law and commercial leasing law, and has been named the Best Lawyers’ 2011 Toronto real estate lawyer of the year. Admitted to the Ontario Bar in 1982.