Toronto's Office of the Ombudsman officially opened in April 2009. In the City of Toronto Act, 2006, the provincial government created the role of Ombudsman as part of an independent Accountability Framework for the City, which includes four offices:
  Since 2015, the four Accountability Offices have operated under a Memorandum of Understanding which provides for co-operation and collaboration among them in fulfilling their respective mandates. This enhances the fairness, efficiency and effectiveness of the Accountability Framework.
Fiona Crean was appointed Toronto’s first Ombudsman and served until November 2015. Kwame Addo served as Interim Ombudsman for almost one year. Effective September 19, 2016, City Council unanimously appointed Susan E. Opler as the City’s second Ombudsman for a seven-year, non-renewable term.