Our Judges

Final Bench Judges

  • Photo of Malcolm Rowe Malcolm Rowe
  • Photo of Kathryn Feldman Kathryn N. Feldman
  • Photo of Katherine van Rensburg Katherine van Rensburg

Malcolm Rowe


Supreme Court of Canada since 2016. Newfoundland & Labrador Court of Appeal 2001-16. Supreme Court of Newfoundland & Labrador, Trial Division 1999-2001.  Member of Council or the Board of Directors Canadian Superior Courts Judges Association 2005-2016.  Chair of the Advisory Committee for Federal Judicial Appointments (Newfoundland & Labrador) 2006-12.

Clerk of the Executive Council & Secretary to Cabinet, Newfoundland & Labrador 1996-99.

Associate, then partner with Gowling & Henderson in Ottawa 1984-1996.  Practice largely public law, notably projects for the Government of Canada, including, inter alia: maritime boundary arbitration with France (St. Pierre & Miquelon); fisheries negotiations with France (1972 Treaty); foreign overfishing issues with the European Union.  Awarded Queens Counsel 1992.

Taught public/constitutional law (part-time) University of Ottawa Law School (1991-93). Chair of the Canadian Bar Association International Law Section (1994-95).

Foreign Service Officer, Department of External Affairs 1980-1984: the Legal Bureau (Ottawa), the United Nations (New York) and Havana.

Clerk Assistant to the Newfoundland legislature 1979-80.  Called to the Bar 1978. Osgoode Hall Law School 1975-78. Memorial University 1970-75: B.Sc., B.A.

Born June 27, 1953. Brought up in St. John’s, Newfoundland.

Kathryn N. Feldman


Justice Feldman received her B.A. from the University of Toronto in 1970 and her LL.B. from the University of Toronto, Faculty of Law in 1973, where she was co-editor of the University of Toronto Faculty of Law Review and recipient of the Dean's Key.  She is a former partner of the firm of Blake, Cassels & Graydon where she practised in the areas of civil litigation and administrative law.  Justice Feldman was appointed as a Justice of the Ontario Court of Justice (General Division) on December 24, 1990 and sat on the Commercial List as well as on criminal and civil matters.  She was appointed to the Court of Appeal for Ontario on June 11, 1998.  Since her appointment to the Bench, Justice Feldman has participated in numerous continuing legal education programs for law students, lawyers and judges as a lecturer and seminar leader, and has served as a frequent member of the final bench of a number of moot courts.  She served as the Chair and Co-chair of the Insurance Committee of the Canadian Superior Court Judges Association from 1992 to 2011.  In January 2001 she became the first recipient of the Canadian Superior Court Judges Association President’s Award.  As an alumna of the U. of T., she served on the Moss Scholarship Selection Committee of the University of Toronto Alumni Association for six years, three years as Chair, and is a recipient of the University of Toronto Arbor Award.  She is currently a director of the Canadian Chapter of the International Women Judges Association.  In 2015, she was one of 50 women featured in the book, Leading the Way: Canadian Women in the Law, Julie Soloway and Emma Costante, 2015 Lexis-Nexis.  In 2016 she was named by University College as an Alumna of Influence.

Katherine van Rensburg


Justice Katherine van Rensburg was appointed to the Court of Appeal for Ontario in October 2013.  Prior to her appointment to this court she had served on the Superior Court of Justice in the Central West Region since November 2006.  As a trial judge, Justice van Rensburg was chambered in Brampton, and presided over criminal, family and civil law matters. She also served on the Divisional Court.

Justice van Rensburg was an associate lawyer and then a partner at the Toronto law firm Smith Lyons LLP, and she became a partner in Gowling Lafleur Henderson LLP with the merger of the two firms in 2001.  She practised civil litigation and environmental law, having been certified by the Law Society of Upper Canada as a specialist in each.

Justice van Rensburg is a graduate of the University of Toronto (B.A.), Queen's University (LL.B.) and Cambridge University (LL.M.).  She spent her articling year as law clerk for the Honourable Justice Wm. McIntyre at the Supreme Court of Canada.

Semi-Final Judges

  • Photo of Mario Faieta Mario D. Faieta
  • Photo of Jerry DeMarco Jerry DeMarco
  • Photo of Hugh Wilkins Hugh Wilkins
  • Photo of Dianne Saxe Dianne Saxe
  • Photo of Ramani Nadarajah Ramani Nadarajah
  • Photo of Chris Tollefson Chris Tollefson

Mario D. Faieta


The Honourable Mr. Justice Mario D. Faieta was appointed to the Ontario Superior Court of Justice on December 16, 2014.  He worked 25 years for the Attorney General for Ontario primarily in the area of environmental law while with the Ministry of the Environment and Climate Change and the Environmental Review Tribunal and to a lesser extent in the area of land use planning over a four year period with the Ministry of Municipal Affairs and Housing (as it then was).  He co-authored a book “Environmental Harm: Civil Actions and Compensation” that was published by Butterworths in 1996.

Jerry DeMarco

Associate Chair of the Conservation Review Board (CRB) and Environmental Review Tribunal (ERT)

Jerry V. DeMarco is the Associate Chair of the Conservation Review Board (CRB) and Environmental Review Tribunal (ERT), which are two of the five tribunals in the Environment and Land Tribunals Ontario (ELTO) cluster.  Jerry also serves as the Alternate Executive Chair of ELTO and, as part of those duties, is a member of the Assessment Review Board, the Board of Negotiation, and the Ontario Municipal Board.  He has also served as Co-Chair of Annual Conferences of the Society of Ontario Adjudicators and Regulators.  Prior to his appointment to the ERT in 2005, Jerry appeared before the Supreme Court of Canada and other courts and tribunals.  Jerry is co-author of Environmental Boards and Tribunals in Canada: A Practical Guide, Second Edition (LexisNexis, 2016) and has contributed to publications such as the Supreme Court Law Review, Canadian Bar Review, Journal of Environmental Law and Practice, and Review of European Community and International Environmental Law.  He is a lawyer and planner (MCIP) with a Bachelor of Arts degree from the University of Windsor, a Bachelor of Laws degree from the University of Toronto, and Master’s degrees in Science from the University of Toronto, Management from McGill University, and Environmental Studies from York University.  Jerry was the first recipient of the City of Toronto’s Green Toronto Award for environmental leadership. 

Hugh Wilkins

Member of the Environmental Review Tribunal and the Ontario Municipal Board

Hugh Wilkins is a Member of the Environmental Review Tribunal and the Ontario Municipal Board and a lawyer who has specialized in administrative, environmental and international law and policy.  He practiced law at Morris/Rose/Ledgett LLP and Ecojustice Canada and is a former adjunct professor at Osgoode Hall Law School, York University.  He is also the former managing editor of the Review of European and Comparative International Environmental Law.  He holds Bachelor of Arts (Honours) and Bachelor of Laws degrees from Queen's University and a Master of Laws degree from the London School of Economics.

Dianne Saxe

Environmental Commissioner of Ontario (ECO)

Dianne Saxe is the Environmental Commissioner of Ontario (ECO), a tough but fair watchdog over Ontario’s environmental, energy and climate performance, and guardian of the Environmental Bill of Rights (EBR).  The ECO is a bridge between the public and the government on environmental issues.

Prior to her appointment, Dianne was one of Canada’s most respected environmental lawyers.  She has 40 years’ unparalleled experience writing, interpreting, and litigating Ontario's energy and environmental laws.  Dianne’s career began with the Ontario Public Service and two major Bay Street law firms.  She then established one of Canada's top environmental law boutiques.

A Certified Environmental Law Specialist, Dianne is recognized in every Canadian and international legal rating service, including acknowledgement as one of the world’s top 25 environmental lawyers by Best of the Best, 2008 and as Best Lawyers’ first Environmental Lawyer of the Year for Toronto.  Some of her numerous tributes and honours include the Award for Distinguished Service, the highest honour granted by the Ontario Bar Association; and the Gold Key Award for exceptional lifetime professional achievement, granted by Osgoode Hall Law School Alumni.

Dianne has travelled extensively in Ontario and Canada, both in her professional practice and as a keen canoeist, kayaker and cross-country skier.

Her five-year appointment will be focused on serving the Ontario Legislature, improving the effectiveness of the Environmental Bill of Rights and catalyzing better environmental, energy and climate outcomes, for and with the people of Ontario.

Ramani Nadarajah

Counsel, Canadian Environmental Law Association

Ramani Nadarajah is counsel with the Canadian Environmental Law Association (CELA).  She holds an LL.B. (1987) and an LL.M. (2007) from Osgoode Hall Law School and is certified by the Law Society of Upper Canada as a Specialist in Environmental Law.  Prior to joining CELA in 1994, Ramani was a prosecutor with the Ontario Ministry of Environment.  She has appeared before the courts and administrative tribunals on cases involving contaminated sites, waste, air pollution, pesticides, water-takings and environmental land use planning.  She was co-counsel for five hundred residents at both phases of the Walkerton Inquiry.

Ramani has served on federal and provincial government advisory bodies on a range of issues including environmental penalties, brownfields and modernizing environmental approvals.  Ramani is a co-editor of Carswell’s Canadian Environmental Law Reports and has published articles in Canadian and international law journals on environmental law and policy issues, with a focus on regulatory compliance and enforcement.

Chris Tollefson

Professor of Law, University of Victoria

Chris Tollefson has degrees from Queen’s, University of Victoria and Osgoode Hall Law School, and clerked at the BC Court of Appeal.  He combines teaching and research on environmental issues with counsel work for various public interest environmental clients.   This counsel work has included appearances before all levels of court, including the Supreme Court of Canada, and various  regulatory boards and tribunals.  Chris was counsel to BC Nature and Nature Canada during both the Enbridge Northern Gateway and Kinder Morgan Trans Mountain pipeline hearing processes.  He has won various awards for his teaching and research, and in 2014 was the recipient of Nature Canada’s Conservation Partner Award for his work leading their pro bono legal team during the Northern Gateway pipeline hearings.  He is co-author (with Meinhard Doelle) of a leading environmental law textbook.  Chris is a former President of Ecojustice, served for two decades as executive director of the UVic Environmental Law Centre, and is the founding executive director of Canada’s newest public interest environmental law non-profit, the Pacific Centre for Environmental Law and Litigation (“CELL”): see http://www.pacificcell.ca/.

Preliminary Round Judges

  • Julie Abouchar - Willms & Shier Environmental Lawyers LLP
  • Gerry Beelen - Shell Canada
  • Charles Birchall - Willms & Shier Environmental Lawyers LLP
  • Richard Butler - Willms & Shier Environmental Lawyers LLP
  • Bryan Buttigieg - Miller Thomson LLP
  • Joe Castrilli - Canadian Environmental Law Association (CELA)
  • Jack Coop - Fogler Rubinoff LLP
  • Rosalind Cooper - Fasken Martineau DuMoulin
  • Ralph Cuervo-Lorens - Blaney McMurtry LLP
  • Jennifer Danahy - Gowling WLG
  • Tamara Farber - Miller Thomson LLP
  • Lana Finney - DLA Piper LLP
  • Jamie Flagal - Ministry of the Environment and Climate Change (MOECC)
  • John Georgakopoulos - Willms & Shier Environmental Lawyers LLP
  • Gabrielle Kramer - Borden Ladner Gervais LLP (BLG)
  • Paul Manning - Manning Environmental Law
  • Bruce McMeekin - Bruce McMeekin Law
  • Danielle Meuleman - Ministry of the Environment and Climate Change (MOECC)
  • Natalie Mullins - Gowling WLG
  • Sarah Powell - Davies
  • Graham Rempe - City of Toronto
  • Joanna Rosengarten - McCarthy Tétrault
  • Jacquelyn Stevens - Willms & Shier Environmental Lawyers LLP
  • John Tidball - Miller Thomson LLP
  • Barry Weintraub - Rueters LLP