Avocat primé et fort prisé, Guy a rempli un nombre impressionnant de mandats complexes dans les domaines du litige commercial (notamment les actions collectives), du droit administratif et du droit constitutionnel
Guy plaide fréquemment devant la Cour suprême du Canada (CSC), les cours supérieures et d’appel de l’Ontario et du Québec, ainsi que devant la Cour fédérale (CF) et la Cour d’appel fédérale (CAF).
Guy Pratte a été nommé à l'Ordre du Canada en 2022 pour ses contributions en tant qu'avocat, notamment au mouvement pro bono, et pour son engagement bénévole auprès des arts de la scène.
Expérience
- York University v. Canadian Copyright Licensing Agency (décision en délibéré en May 2021)
- Grant Thornton LLP v. Province of New Brunswick (heard in March 2021 and judgment reserved)
- Reference re Greenhouse Gas Pollution Pricing Act, 2021 SCC 11
- 6362222 Canada Inc. v. Prelco Inc. (heard in December 2020 and judgment reserved)
- Conférence des juges de la Cour du Québec v. Chief Justice (heard in September 2020 and judgment reserved)
- Nova Scotia (Attorney General) v. Judges of the Provincial Court and Family Court of Nova Scotia, 2020 SCC 21 (appeal allowed in part)
- Volkswagen Group Canada Inc. v. Association québécoise de lutte contre la pollution atmosphérique, 2019 SCC 53 (appeal dismissed)
- Trinity Western University c. Law Society of Upper Canada, 2018 CSC 33, [2018] 2 R.C.S. 453 (appeal dismissed)
- Deloitte & Touche v. Livent Inc. (Receiver of), 2017 SCC 63 (appeal allowed in part)
- World Bank Group v. Wallace, 2016 SCC 15, [2016] 1 S.C.R. 207 (appeal allowed)
- Canadian Pacific Railway Co. v. Canada (Attorney General), 2016 SCC 1, [2016] 1 S.C.R. 6 (appeal dismissed)
- Hinse v. Canada (Attorney General), 2015 SCC 35, [2015] 2 S.C.R. 621 (appeal dismissed);
- Canadian National Railway Co. v. Canada (Attorney General), 2014 SCC 40, [2014] 2 S.C.R. 135 (appeal dismissed)
- Québec (Attorney General) v. A, 2013 SCC 5, [2013] 1 S.C.R. 61, 2013 CSC 5, [2013] 1 R.C.S. 61 (appeal allowed)
- Cinar Corporation v. Robinson, 2013 SCC 73, [2013] 3 S.C.R. 1168 (appeal dismissed)
- S.L. v. Commission scolaire des Chênes, 2012 SCC 7, [2012] 1 S.C.R. 235 (appeal dismissed)
- Canada (Attorney General) v. PHS Community Services Society, 2011 SCC 44, [2011] 3 S.C.R. 134, 2011 CSC 44, [2011] 3 R.C.S. 134 (appeal dismissed)
- Bou Malhab v. Diffusion Métromédia CMR Inc., 2011 SCC 9, [2011] 1 S.C.R. 214 (appeal dismissed)
- Ontario (Public Safety and Security) v. Criminal Lawyers’ Association, 2010 SCC 23, [2010] 1 S.C.R. 815 (appeal allowed)
- Canadian National Railway Co. v. Royal and Sun Alliance Insurance Co. of Canada, [2008] 3 S.C.R. 453, 2008 SCC 66 (appeal allowed)
- Chaoulli v. Québec (Attorney General), [2005] 1 S.C.R. 791, 2005 SCC 35 (appeal allowed)
- Finney v. Barreau du Québec, [2004] 2 S.C.R. 17, 2004 SCC 36 (appeal allowed)
- Reference re Bill 30, An Act to Amend the Education Act (Ont.), [1987] 1 S.C.R. 1148 (appeal dismissed)
- York University v. Canadian Copyright Licensing Agency (décision en délibéré en May 2021)
- Grant Thornton LLP v. Province of New Brunswick (heard in March 2021 and judgment reserved)
- Reference re Greenhouse Gas Pollution Pricing Act, 2021 SCC 11
- 6362222 Canada Inc. v. Prelco Inc. (heard in December 2020 and judgment reserved)
- Conférence des juges de la Cour du Québec v. Chief Justice (heard in September 2020 and judgment reserved)
- Nova Scotia (Attorney General) v. Judges of the Provincial Court and Family Court of Nova Scotia, 2020 SCC 21 (appeal allowed in part)
- Volkswagen Group Canada Inc. v. Association québécoise de lutte contre la pollution atmosphérique, 2019 SCC 53 (appeal dismissed)
- Trinity Western University c. Law Society of Upper Canada, 2018 CSC 33, [2018] 2 R.C.S. 453 (appeal dismissed)
- Deloitte & Touche v. Livent Inc. (Receiver of), 2017 SCC 63 (appeal allowed in part)
- World Bank Group v. Wallace, 2016 SCC 15, [2016] 1 S.C.R. 207 (appeal allowed)
- Canadian Pacific Railway Co. v. Canada (Attorney General), 2016 SCC 1, [2016] 1 S.C.R. 6 (appeal dismissed)
- Hinse v. Canada (Attorney General), 2015 SCC 35, [2015] 2 S.C.R. 621 (appeal dismissed);
- Canadian National Railway Co. v. Canada (Attorney General), 2014 SCC 40, [2014] 2 S.C.R. 135 (appeal dismissed)
- Québec (Attorney General) v. A, 2013 SCC 5, [2013] 1 S.C.R. 61, 2013 CSC 5, [2013] 1 R.C.S. 61 (appeal allowed)
- Cinar Corporation v. Robinson, 2013 SCC 73, [2013] 3 S.C.R. 1168 (appeal dismissed)
- S.L. v. Commission scolaire des Chênes, 2012 SCC 7, [2012] 1 S.C.R. 235 (appeal dismissed)
- Canada (Attorney General) v. PHS Community Services Society, 2011 SCC 44, [2011] 3 S.C.R. 134, 2011 CSC 44, [2011] 3 R.C.S. 134 (appeal dismissed)
- Bou Malhab v. Diffusion Métromédia CMR Inc., 2011 SCC 9, [2011] 1 S.C.R. 214 (appeal dismissed)
- Ontario (Public Safety and Security) v. Criminal Lawyers’ Association, 2010 SCC 23, [2010] 1 S.C.R. 815 (appeal allowed)
- Canadian National Railway Co. v. Royal and Sun Alliance Insurance Co. of Canada, [2008] 3 S.C.R. 453, 2008 SCC 66 (appeal allowed)
- Chaoulli v. Québec (Attorney General), [2005] 1 S.C.R. 791, 2005 SCC 35 (appeal allowed)
- Finney v. Barreau du Québec, [2004] 2 S.C.R. 17, 2004 SCC 36 (appeal allowed)
- Reference re Bill 30, An Act to Amend the Education Act (Ont.), [1987] 1 S.C.R. 1148 (appeal dismissed)