Teagan is Co-Chair of BLG’s Appellate and Public Advocacy Groups. She is an experienced litigator with expertise in public law, white collar defence and appellate advocacy, in addition to commercial litigation and arbitration matters.
Teagan is an expert on the use and limits of public powers. Clients value her first-principles approach when navigating unprecedented legal problems. Teagan regularly represents individuals and corporations in complex regulatory proceedings, in addition to acting for administrative decision-makers, not-for-profit corporations and publicly funded entities, including hospitals and school boards. Her areas of expertise include transportation, professional regulation and judicial discipline, higher education, elections, energy regulation, securities, anti-money laundering, the regulation of foreign online businesses, human rights, constitutional law and civil liberties, sanctions and other regulatory and criminal matters. In her commercial practice, Teagan handles breach of contract claims, shareholder and fiduciary disputes, fraud, and defamation matters.
Teagan is a skilled courtroom advocate. She has argued cases before administrative tribunals, all levels of court in Ontario (including the Divisional Court and Court of Appeal for Ontario), the Federal Courts and the Supreme Court of Canada.
Teagan regularly speaks and publishes on public and appellate law matters. Prior to practice, she gained judicial insight as a law clerk to the Honourable Justice Rosalie Silberman Abella at the Supreme Court of Canada. Teagan graduated from the Schulich School of Law Dalhousie University as the gold medallist and earned a Master of Laws (LL.M.) degree from Harvard Law School.
Public law
- Canadian National Railway Company v. Alberta Pacific Forest Industries Inc. – Counsel to Canadian National Railway Company before the Supreme Court of Canada dealing with the constitutional right to judicial review under the Federal Courts Act
- Pepa v. Canada (Citizenship and Immigration) – Counsel to the Canadian Civil Liberties Association before the Supreme Court of Canada dealing with the interpretation of statutory appeal rights under the Immigration and Refugee Protection Act.
- Canadian National Railway Company v. Canada (Transportation Agency) - Counsel to Canadian National Railway Company in a statutory appeal overturning the Canadian Transportation Agency’s long-standing methodology for setting interswitching rates under the Canada Transportation Act.
- Mathur v. Ontario – Counsel to the B.C. Civil Liberties Association as intervener in a challenge to Ontario’s greenhouse gas emissions target dealing with the extent to which the Charter places positive obligations on the government.
- Peterson v. College of Psychologists of Ontario – Counsel to the Canadian Civil Liberties Association on the limits of a professional regulator’s authority over members’ expression.
- Hawke v. Western University – Counsel to Western University successfully defending their COVID-19 vaccination policy against a challenge on privacy grounds.
- Canadian Federation of Students v. Ontario (Colleges and Universities) – Counsel to the University of Toronto Graduate Students Union in a challenge to an Ontario policy affecting the collection of student fees.
- Sherman Estate v. Donovan – Counsel for the Income Security Advocacy Centre in a Supreme Court of Canada intervention on the legal test to preclude disclosure of sensitive personal information in public proceedings.
- Counsel before the Cullen Commission of Inquiry into Money Laundering in British Columbia for the participant Chartered Professional Accountants of Canada.
- Szuchewycz v. Canada (Attorney General) – Counsel for the Chief Electoral Officer of Canada on judicial review.
- Smith v. Canada (Attorney General) – Counsel for the Canadian Judicial Council on judicial review.
- Canadian National Railway Company v. Alberta Pacific Forest Industries Inc. – Counsel to Canadian National Railway Company before the Supreme Court of Canada dealing with the constitutional right to judicial review under the Federal Courts Act
- Pepa v. Canada (Citizenship and Immigration) – Counsel to the Canadian Civil Liberties Association before the Supreme Court of Canada dealing with the interpretation of statutory appeal rights under the Immigration and Refugee Protection Act.
- Canadian National Railway Company v. Canada (Transportation Agency) - Counsel to Canadian National Railway Company in a statutory appeal overturning the Canadian Transportation Agency’s long-standing methodology for setting interswitching rates under the Canada Transportation Act.
- Mathur v. Ontario – Counsel to the B.C. Civil Liberties Association as intervener in a challenge to Ontario’s greenhouse gas emissions target dealing with the extent to which the Charter places positive obligations on the government.
- Peterson v. College of Psychologists of Ontario – Counsel to the Canadian Civil Liberties Association on the limits of a professional regulator’s authority over members’ expression.
- Hawke v. Western University – Counsel to Western University successfully defending their COVID-19 vaccination policy against a challenge on privacy grounds.
- Canadian Federation of Students v. Ontario (Colleges and Universities) – Counsel to the University of Toronto Graduate Students Union in a challenge to an Ontario policy affecting the collection of student fees.
- Sherman Estate v. Donovan – Counsel for the Income Security Advocacy Centre in a Supreme Court of Canada intervention on the legal test to preclude disclosure of sensitive personal information in public proceedings.
- Counsel before the Cullen Commission of Inquiry into Money Laundering in British Columbia for the participant Chartered Professional Accountants of Canada.
- Szuchewycz v. Canada (Attorney General) – Counsel for the Chief Electoral Officer of Canada on judicial review.
- Smith v. Canada (Attorney General) – Counsel for the Canadian Judicial Council on judicial review.
White collar criminal defence
- Reference re iGaming Ontario – Counsel to an online poker operator in a reference in the Ontario Court of Appeal and Supreme Court of Canada concerning the legality of Ontario’s proposed model for online gaming and sports betting.
- Binance Holdings Limited v. Ontario Securities Commission – Counsel to a leading cryptocurrency exchange in a successful challenge to an investigative summons as overbroad and contrary to section 8 of the Charter.
- Counsel to cryptocurrency payment gateway in Federal Court appeal of administrative monetary penalties imposed by FINTRAC for alleged violations of the Proceeds of Crime (Money Laundering) and Terrorist Financing Act.
- Reference re iGaming Ontario – Counsel to an online poker operator in a reference in the Ontario Court of Appeal and Supreme Court of Canada concerning the legality of Ontario’s proposed model for online gaming and sports betting.
- Binance Holdings Limited v. Ontario Securities Commission – Counsel to a leading cryptocurrency exchange in a successful challenge to an investigative summons as overbroad and contrary to section 8 of the Charter.
- Counsel to cryptocurrency payment gateway in Federal Court appeal of administrative monetary penalties imposed by FINTRAC for alleged violations of the Proceeds of Crime (Money Laundering) and Terrorist Financing Act.
Commercial litigation
- Fernandes v. Chartered Professional Accountants of Ontario – Counsel for the Chartered Professional Accountants of Ontario in a successful motion for summary judgment based on a limitations defence.
- Capital Sports Management Inc. v. Trinity Development et al. – Counsel for a defendant responding to a claim arising out of a failed real estate development, including numerous contested motions.
- Clarus Securities Inc. v. Aphria Inc.– Counsel for underwriters on a successful application to enforce an indemnity against an issuer in a securities dispute.
- Ghorbankarimi v. Bergeron – Counsel for the corporate respondent on a successful motion to strike the statement of claim.
- Fernandes v. Chartered Professional Accountants of Ontario – Counsel for the Chartered Professional Accountants of Ontario in a successful motion for summary judgment based on a limitations defence.
- Capital Sports Management Inc. v. Trinity Development et al. – Counsel for a defendant responding to a claim arising out of a failed real estate development, including numerous contested motions.
- Clarus Securities Inc. v. Aphria Inc.– Counsel for underwriters on a successful application to enforce an indemnity against an issuer in a securities dispute.
- Ghorbankarimi v. Bergeron – Counsel for the corporate respondent on a successful motion to strike the statement of claim.
