Marie-Andrée Vermette specializes in complex litigation cases and has represented a wide range of clients. She is known as a skilled advocate and has been involved in some of the most publicized and sophisticated corporate/commercial disputes, class actions, and public law cases. She is the chair of WeirFoulds' Commercial Litigation Practice Group.

Marie-Andrée has appeared before all levels of courts in Ontario, before the Federal Court of Canada and the Federal Court of Appeal, and before the Supreme Court of Canada. She has also appeared before administrative tribunals and boards. Marie-Andrée uses her courtroom experience, knowledge and insight to provide clients with skillful representation and proactive solutions.

Marie-Andrée is called to the bar in both Ontario and Quebec and provides services to her clients in both French and English. She is deeply committed to the advancement of the legal profession and she sits on the board of directors of both The Advocates’ Society and the Association des juristes d’expression française de l’Ontario.

Marie-Andrée frequently shares her knowledge and experience as a speaker and instructor in litigation-related programs, and as a frequent author of timely and relevant articles and publications.

Her skills and reputation as an innovative litigator have resulted in her repeated recognition as a leading practitioner in corporate and commercial litigation and in public law litigation. She has been listed in the 2019 edition of Best Lawyers® in Canada, in the 2018 edition of the Canadian Legal Lexpert® Directory, and in the 2017 edition of Benchmark Canada, the Guide to Canada’s Leading Litigation Firms and Attorneys. Marie-Andrée was recognized as one of Canada’s 2008 Lexpert “Rising Stars–Leading Lawyers Under 40”, and one of the Lexpert 2009 “Canadian Litigation Lawyers to Watch”.

Prior to joining WeirFoulds, Marie-Andrée clerked for Mr. Justice Gonthier at the Supreme Court of Canada, and received her LL.M. from Columbia University in New York where she was named a James Kent Scholar.

Marie-Andrée has recently been involved in the following cases:

Acts for the representative plaintiff in Trillium Motor World Ltd. v. General Motors of Canada Limited and Cassels Brock & Blackwell LLP, a class action in which former General Motors dealers sued the defendants for, among others, breaches of the Arthur Wishart Act (Franchise Disclosure) and solicitor’s negligence. After a 41-day trial in 2015, judgment was granted against the law firm Cassels Brock & Blackwell LLP, and the action was dismissed as against General Motors of Canada: Trillium Motor World Ltd. v General Motors of Canada Ltd. (2015), 30 C.B.R. (6th) 1, 48 B.L.R. (5th) 142 (Ont SCJ) (Identified by The Law Times as one of the six top cases of 2015).In decisions released in July 2017, the Ontario Court of Appeal generally affirmed the decision of the trial judge, with a certain reduction in damages against the law firm: Trillium Motor World Ltd. v. General Motors of Canada Ltd. and Cassels Brock & Blackwell LLP, 2017 ONCA 544 and 2017 ONCA 545.

Acted for the board of directors of U.S. Steel Canada in the context of the company’s restructuring under the Companies’ Creditors Arrangement Act in 2014-2017.

Acts for a corporation located on the Six Nations of the Grand River Reserve and its aboriginal shareholders in an action against the Government of Canada for $3 billion in damages for misfeasance in public office, negligence, breach of aboriginal rights, and breach of fiduciary duty. See Grand River Enterprises Six Nations Ltd. v The Attorney General of Canada, 2017 ONCA 526.

Acted for Stelco Inc. in Georgian Windpower Corporation v. Stelco Inc., a case in which the Plaintiffs were seeking damages in the amount of $350 million against Stelco for, among others, breach of contract. See Georgian Windpower Corp. v. Stelco Inc. (2012), 113 O.R. (3d) 81 (S.C.J.).

Acted for one of the former senior officers of Nortel Networks Corporation and Nortel Networks Limited in various litigation resulting from the restatements of Nortel’s financial statements.

Acted for a national firm of chartered accountants in defending an action for alleged professional negligence, breach of contract, and breach of fiduciary duties, and successfully bringing a motion for summary judgment. Acted for the successful Appellant in GEA Group AG v. Ventra Group Co. (2009), 96 O.R. (3d) 481 (C.A.), the leading case in Canada on Norwich Orders.

Acted for the Law Society of Upper Canada in Law Society of Upper Canada v. Minister of Immigration and Canadian Society of Immigration Consultants, a case in which the Law Society was seeking a declaration that the Regulation authorizing the Canadian Society of Immigration Consultants to regulate immigration consultants was unconstitutional and ultra vires.

Acted for the Commissioner of Competition at first instance in Commissioner of Competition v. Labatt Brewing Co. Ltd., a case in which the Commissioner of Competition sought to delay the acquisition of Lakeport by Labatt (ranked in the Top Ten Business Cases of 2007 in Canada by Lexpert).

Acted as Ontario counsel for WestJet Airlines Ltd. in Air Canada v. WestJet Airlines Ltd., notably in the first reported case dealing with the Ontario Guidelines on electronic discovery (ranked as #1 in the Top Ten Business Cases of 2006 in Canada by Lexpert).

Acted pro bono for the parents of autistic children in N.(R.) (Litigation Guardian of) v. Ontario (Minister of Community, Family and Children’s Services), an administrative law case in which the parents successfully challenged funding decisions made by the Minister.

Acted for the Complainant in Iness v. Canada Mortgage and Housing Corporation, a case involving constitutional issues such as the division of powers, paramountcy and inter-jurisdictional immunity.

General Motors of Canada Co. v. Trillium Motor World Ltd. (2019), 144 O.R. (3d) 183 (S.C.J.)

Bruno-Manser-Fonds v. Royal Bank of Canada (2018), 141 O.R. (3d) 72 (S.C.J.)

Trillium Motor World Ltd. v. General Motors of Canada Limited (2017), 67 B.L.R. (4th) 11 (Ont. C.A.)

Trillium Motor World Ltd. v. Cassels Brock & Blackwell LLP (2017), 50 C.B.R. (6th) 26 (Ont. C.A.)

Re U.S. Steel Canada Inc. (2016), 44 C.B.R. (6th) 133 (Ont. S.C.J.)

Association for the Protection of Amherst Island v. Director of Environmental Approvals (2016), 3 C.E.L.R. (4th) 345 (Ont. Div. Ct.)

Association for the Protection of Amherst Island v. Director of Environmental Approvals (2016), 2 C.E.L.R. (4th) 277 (Ont. Div. Ct.)

Trillium Motor World Ltd. v. General Motors of Canada Ltd. (2016), 35 C.B.R. (6th) 126 (Ont. S.C.J.)

Trillium Motor World Ltd. v. General Motors of Canada Ltd. (2015), 48 B.L.R. (5th) 142 (Ont. S.C.J.)

Trillium Motor World Ltd. v. General Motors of Canada Ltd. (2014), 20 C.B.R. (6th) 332 (Ont. S.C.J.)

Trillium Motor World Ltd. v. General Motors of Canada Ltd. (2014), 69 C.P.C. (7th) 161 (Ont. S.C.J.)

Georgian Windpower Corp. v. Stelco Inc. (2012), 113 O.R. (3d) 81 (S.C.J.)

Trillium Motor World Ltd. v. General Motors of Canada Ltd. (2012), 76 E.T.R (3d) 294 (Ont. Div. Ct.)

Georgian Windpower Corp. v. Stelco Inc. (2011), 12 R.P.R. (5th) 133 (Ont. S.C.J.)

Kaptyn Estate (Re) (2011), 64 E.T.R. (3d) 269 (Ont. S.C.J.)

Kaptyn Estate (Re) (2010), 102 O.R. (3d) 1 (Ont. S.C.J.)

GEA Group AG v. Ventra Group Co. (2009), 96 O.R. (3d) 481 (C.A.)

GEA Group AG v. Ventra Group Co. (2009), 307 D.L.R. (4th) 329 (Ont. S.C.J.)

Muscillo v. Bulk Transfer Systems Inc. (2009), 61 B.L.R. (4th) 92 (Ont. S.C.J.)

Law Society of Upper Canada v. Canada (Minister of Citizenship and Immigration) (2008), 295 D.L.R. (4th) 488 (F.C.A.)

Canada (Commissioner of Competition) v. Labatt Brewing Co. Ltd., 2007 Comp. Trib. 9

Frohlinger v. Nortel Networks Corp. (2007), 40 C.P.C. (6th) 62 (Ont. S.C.J.)

Law Society of Upper Canada v. Canada (Minister of Citizenship and Immigration) (2006), [2007] 4 F.C.R. 132 (F.C.)

Law Society of Upper Canada v. Canada (Minister of Citizenship and Immigration) (2006), 55 Imm. L.R. (3d) 238 (F.C.)

Air Canada v. WestJet Airlines Ltd. (2006), 81 O.R. (3d) 48 (S.C.J.)

Air Canada v. WestJet Airlines Ltd. (2006), 29 C.P.C. (6th) 209 (Ont. S.C.J.)

Oldfield v. Hewson (2005), 18 E.T.R. (3d) 318 (Ont. S.C.J.)

Re Limebeer Estate (2005), 14 E.T.R. (3d) 290 (Ont. S.C.J.)

Simanic v. Ross (2005), 9 C.P.C. (6th) 262 (Ont. S.C.J.)

Clough (Litigation Guardian of) v. Simcoe County District School Board (2005), 197 O.A.C. 331 (Div. Ct.)

Simanic v. Ross (2004), 71 O.R. (3d) 161 (S.C.J.)

Family and Children’s Services of St. Thomas and Elgin v. W.F. (2005), 15 R.F.L. (6th) 134 (Ont. S.C.J.)

N.(R.) (Litigation Guardian of) v. Ontario (Minister of Community, Family and Children’s Services) (2004), 70 O.R. (3d) 420 (Div. Ct.)

Leadbeater v. Ontario (2004), 70 O.R. (3d) 224 (S.C.J.)

Canada Mortgage and Housing Corp. v. Iness (2004), 70 O.R. (3d) 148 (C.A.)

Labourers’ Pension Fund of Central and Eastern Canada (Trustee of) v. O’Sullivan (2004), 45 C.C.P.B. 58 (Ont. C.A.)

Dionisio v. O’Sullivan (2004), 44 C.C.P.B. 82 (Ont. S.C.J.)

McLennan v. McLennan (2003), 169 O.A.C. 249 (C.A.)

Iness v. Canada Mortgage and Housing Corp. (2002), 62 O.R. (3d) 255 (C.A.)

Supply Chain Express Inc. v. Ontario (Labour Relations Board) (2001), 151 O.A.C. 186 (Div. Ct.)

 

  • Recognized by Best Lawyers® in Canada 2016, 2017, 2018 and 2019 as a leading lawyer in Corporate and Commercial Litigation
  • Repeatedly recognized in Benchmark Canada, the Guide to Canada’s Leading Litigation Firms and Attorneys as a Future Star
  • Recognized in the Canadian Legal Lexpert® Directory as a leading lawyer in Litigation – Corporate Commercial & Litigation – Public Law
  • Member of the Board of Directors of The Advocates’ Society
  • Member of the Board of Directors of the Association des juristes d’ expression française de l’Ontario (AJEFO)
  • Treasurer and Member of the Board of Directors of Avocats Hors Québec / Quebec Lawyers Abroad
  • Past President of the Official Languages Committee of the Ontario Bar Association
Called to the Bar
  • Ontario (2001)
  • Québec (1998)
Education
  • LL.M., James Kent Scholar, Columbia University School of Law, 2001
  • B.C.L. and LL.B. (Elizabeth Torrance Gold Medalist; Stood First in her Class), McGill University, 1997
  • Exchange Program, University of Groningen, 1996
Affiliations
  • The Advocates' Society
  • Ontario Bar Association
  • Canadian Bar Association
  • Metropolitan Toronto Lawyers' Association
  • Association des juristes d'expression française de l'Ontario
Languages
  • French

Community Involvement

Member of the Board of Directors of Le Labo

Member of the Board of Directors of Centre francophone de Toronto (2015-2017)

Speaking Engagements

Co-Chair, “Motions Advocacy”, The Advocates’ Society, March 2019
Speaker, “Recent Developments in the Common Law Provinces”, National Conference on Class Actions, Barreau du Québec, March 2019
Speaker, “What Goes Around Comes Around: Lawyers Under Class Action Attack”, 15th National Symposium on Class Actions, Osgoode Professional Development, April 2018
Skills Instructor, Cross-Examination: Strategies for Success, The Advocates’ Society, January 2019
Moderator, “Practice and Procedure from Coast to Coast”, Fall Forum 2018: The Litigator of the Future, The Advocates’ Society, October 2018
Speaker, “Recours extraordinaires”, PratiquO, July 2018
Speaker, "Les vérificateurs tremblent dans leurs bas bruns", Congrès annuel de l'AJEFO (Association des juristes d'expression française de l'Ontario), June 2018
Co-Chair and Instructor, “Summer Trial Advocacy College”, The Advocates’ Society, June 2018
Skills Instructor, “Summary Judgment Motions”, The Advocates’ Society, May 2018
Speaker, ''Conducting an Effective Examination-in-Chief", Trial from A to Z, The Advocates' Society, March 2018

Legend: GeneralLitigationPropertyCorporateGovernment

Legend: GeneralLitigationPropertyCorporateGovernment

Legend: GeneralLitigationPropertyCorporateGovernment

Additional Publications:

  • Author, “Class Actions in Ontario: Update and Recent Developments”, Colloque national sur l’action collective: Développements récents au Québec, au Canada et aux États-Unis (Éditions Yvon Blais, 2019), volume 455, page 203, Barreau du Québec