Mark is a Toronto based litigation lawyer focused on regulated sectors, representing consumer and stakeholder interests before courts, agencies, and tribunals. Mark also provides policy advice and complex legal opinions on a wide-range of regulatory issues.Mark has a significant energy regulatory practice, and frequently appears before the Ontario Energy Board representing clients in utility distribution and transmission rate applications, leave to construct proceedings, policy consultations, IESO market rules reviews, and variety of other matters. Mark has most recently been recognized in the 2025 editions of ‘Best Lawyers’ in Canada and Chambers Canada. Mark has also represented clients on numerous occasions before the Divisional Court, Court of Appeal, and Supreme Court of Canada on appeals and judicial reviews.Mark currently sits on the executive of the Ontario Bar Association’s Administrative Law Section and is a past Chair of the Natural Resources and Energy Law Section.