The Honourable Dennis O’Connor, O.C., OOnt, Q.C., is senior counsel in the Toronto office of Borden Ladner Gervais LLP. He sat on the Court of Appeal for Ontario from 1998 to 2012. He served as the Associate Chief Justice of Ontario from 2001 until he retired at the end of 2012. He also served as a deputy judge of the Yukon Supreme Court. While on the bench he wrote numerous reported judgments dealing with a wide variety of issues including commercial, securities and insurance law. He also conducted two successful public inquiries: the Walkerton Inquiry (2000-02) and the Maher Arar Inquiry (2004-06).
For the 18 years before his appointment to the Court of Appeal, Dennis was a senior counsel with the law firm of Borden & Elliot (a predecessor firm of Borden Ladner Gervais). His practice focused on commercial and public law litigation. He appeared as lead counsel on many major cases in Ontario and elsewhere in Canada during that time.