Lawrence Ritchie is a Partner in the Disputes group at Osler, Hoskin & Harcourt LLP. He is a litigator and a former securities regulator. He chairs Osler’s cross-disciplinary Risk Management and Crisis Response practice group and co-leads its national Capital Markets Regulatory Enforcement team.
Among other things, he advises public corporations, their directors, officers, and in-house counsel on avoiding, preparing for, managing and responding to extraordinary “crisis” situations, including regulatory investigations and actions that flow from them.
He acts for clients in connection with conducting and responding to internal and regulatory investigations, and defends parties in regulatory proceedings, class actions and related litigation. He has extensive experience, in particular in identifying and addressing regulatory and other enforcement issues encountered by participants in the Canadian capital markets, as well as on corruption matters, providing proactive corporate governance and other risk management advisory services, and represents clients when necessary to address relevant matters with regulators, self-regulatory organizations and in the courts. He has appeared at all levels of courts in Canada, including the Supreme Court of Canada, and numerous administrative tribunals and repeatedly been recognized as one of Canada’s leading securities litigators in legal ranking services including Chambers Canada, Lexpert including Lexpert/American Guide to the Leading 500 Lawyers in Canada, Benchmark Litigation Canada and Best Lawyers.
In 2007, Larry was appointed Vice-Chair of the Ontario Securities Commission, and served as Executive Vice-President and Senior Policy Advisor to the Canadian Securities Transition Office (the organization supporting the federal government’s initiative for a Canadian common securities regulator) from late 2009 to 2014, returning to rejoining Osler thereafter. In 2015-2016, Larry served as a member of the 3-person expert panel which recommended that the Ontario government establish the Financial Services Regulatory Authority (FSRA), to replace the Financial Service Commission of Ontario (FSCO) and the Deposit Insurance Corporation of Ontario (DICO) to regulate much of the financial services and pension sectors in Ontario. The report was delivered in March 2016 and its recommendations largely implemented. In 2018, Larry was appointed as a member of FSRA Board of Directors, on which he served until December 2023.
Larry is an adjunct professor at Osgoode Hall Law School and Queens University Law Faculty where he teaches US Securities Law in a Comparative Context and Introduction to Canadian Securities Regulation respectively co-developed and co-directs Osgoode’s Certificate program in Canadian Financial Services Regulation, Analysis and Decision-Making, has taught at the Institute of Corporate Director’s Education Program and has lectured and written on various legal governance, enforcement, and regulatory topics. He chairs the independent review committee of a Canadian mutual fund, serves on the Special National Advisory Committee to the Integrated Markets Enforcement Team of the RCMP and has served, and currently serves on a number of not-for-profit boards and advisory committees including the Ontario Securities Commission’s CEO’s Advisory Committee. He received his BA in Economics and Politics from the University of Western Ontario, his LLB from Osgoode Hall Law School, and his LLM from the London School of Economics.
Areas of Expertise
Representative Work
- Hydro One Inc.
Bennett v. Hydro One Inc. et al
- Canadian Oil Sands Limited
Canadian Oil Sands Limited in its agreement to support Suncor Energy Inc.’s amended offer valued at $6.6 billion
- Dialogue Health Technologies Inc.
Dialogue in its acquisition by Sun Life Financial
Bennett v. Hydro One Inc. et al
Canadian Oil Sands Limited in its agreement to support Suncor Energy Inc.’s amended offer valued at $6.6 billion
Dialogue in its acquisition by Sun Life Financial
Awards and Recognition
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Chambers Canada: Canada’s Leading Lawyers for Business: Recognized in Litigation: Securities (Band 1) (Ontario); White-Collar Crime & Government Investigations (Nationwide)
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Lexpert’s Leading 500 Cross-Border Lawyers: A Guide to Doing Business in Canada: Recognized in Litigation – Securities
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The Canadian Legal Lexpert Directory: Recognized in White Collar Defence & Investigations; Litigation – Directors’ & Officers’ Liability; Litigation – Securities; Toronto securities litigation lawyers
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Best Lawyers in Canada: Recognized in Corporate and Commercial Litigation; Securities Law
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Benchmark Litigation Canada: Recognized in Dispute Resolution; Securities; White Collar Crime (Litigation Star)
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The National Law Journal: Recognized in Trailblazers & Pioneers: Governance, Risk & Compliance
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Lexpert Special Edition: Recognized in Litigation
Media Mentions
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Osler News November 20, 2025
24 Osler lawyers recognized in Lexpert Special Edition: Litigation 2025
Osler is proud to announce that 24 of our lawyers are recognized in the Lexpert Special Edition: Litigation 2025. This prestigious publication...
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Osler News May 2, 2025
Osler recognized for outstanding bench strength in the 2025 Benchmark Litigation Canada Guide
Osler is proud to announce that 31 of our lawyers have been recognized in the 2025 edition of the Benchmark Litigation Canada Guide, Benchmark’s...
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Media Mentions February 14, 2025
Trade shock offers Canada a chance to kill some bad old ideas – Bloomberg
Osler's Larry Ritchie spoke to Bloomberg about the possibility of reviving the dream of a national securities regulator.
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Media Mentions February 14, 2025
Trump trade threat sparks call to finally harmonize capital markets regulation – Financial Post
Serious trade threats coming from the U.S. make a strong case for revisiting a pan-Canadian model for improving capital markets regulation, says...
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Speaking and Writing
Speaking Engagements
Is Your Board Ready For The Next Crisis? What 2020 Has Taught Us
Panelist, April 6, 2021
Osgoode Securities Law Association’s Cross-Border Event
Panelist, March 29, 2021
Rebuilding After A Workplace Crisis: Governance and Leadership in the #MeToo World
Moderator, Toronto, May 23, 2018
Rebuilding After A Workplace Crisis: Governance and Leadership in the “MeToo” World
Panelist, Montréal, May 22, 2018
Lessons Learned from the 2016 Crop of Corporate Crises
Speaker, April 27, 2017
Brief The Board Webinar Wednesdays
Speaker, March 8, 2017
Speaker, “The Changing Face of Pension Regulation”, Canadian Pension & Benefits Institute, Apr 11, 2017
Speaker, “Canadian Capital Markets – A New Regulator and New Prospectus Exemptions”, 2016 PDAC Convention – Capital Markets Program, Mar 8, 2016
Speaker, “FSCO Mandate Review – Where are we Now?”, Ontario Bar Association, 14th Annual Pension and Benefits Hot Spots, Mar 8, 2016
Speaker, “Market Conduct Regulation – The Forgotten Second Cousin Discussion”, Northwind 2015 Annual Life Insurance Invitational Forum, Dec 2, 2015
Speaker, “Co-Operative Capital Markets Regulator”, IIROC – CLS Compliance Conference 2015, Dec 1, 2015
Speaker, “Implementing the Cooperative Capital Markets Regulatory Regime”, 9th Annual Northwind Capital Markets Roundtable, Facing Threats and Seizing Opportunities, Nov 10, 2015
Speaker / Commentator, “Educating for Integrity”, Canadian Business Ethics Research Network, York University, Nov 5, 2015
Speaker, “Update on the Cooperative Capital Markets Regulatory System”, The Intensive Course in Canadian Securities Law & Practice”, Osgoode Hall Law School, Oct 21, 2015
Speaker, “Risk Management: Prepare for and Minimize Class Action Risk”, Osler Class Action Symposium, Oct 1, 2015
Speaker, “Privatizing the “Public Interest”: Outsourcing Regulatory Enforcement”, 2015 Northwind Class Actions Invitational Forum, Developing Issues in Class Action Litigation, June 11, 2015
Speaker, “Investigating Financial Fraud and Dealing with Special Committees”, OSC Enforcement Conference: Kempenfelt, June 8, 2015
Speaker, “Canadian Cooperative Capital Markets Regulator,” Canada-U.S. Securities Summit 2015, May 13, 2015
Speaker, “Ethics and Regulatory Compliance: Building a Proactive Risk Management Program”, American Lawyer Magazine Webinar, Mar 31, 2015
Speaker, “Fundamentals of U.S. Securities Law: What Canadian Lawyers Need to Know”, Osgoode Professional Development, Mar 26, 2015
Speaker, “The View from the Adjudicators / Decision Makers” – Special Litigation Program”, Administrative Tribunal Advocacy, Mar 24, 2015
Speaker, “The Future of the Public Interest in Securities Adjudication”, Osgoode Professional Development, Feb 4, 2015
Speaker, “Regulatory Compliance – Building a Proactive Risk Management Program”, the 2014 NLJ Regulatory Summit, Dec 2, 2014
Key-note Speaker, “National Capital Markets Policy Making in Canada”, Association of Corporate Counsel, 1st Annual Securities Law Symposium, Oct 1, 2014
Speaker, “Managing Legal Risk: Recent Canadian Employment Law Developments May Impact Your Business”, Osler Webinar, June 2014
Published Work
Larry has authored published papers and case comments, and has spoken extensively on topics within his areas of expertise. He is an adjunct law professor at Osgoode Hall Law School, and has taught courses and seminars including, “Trial Advocacy”, “Avoiding and Resolving Securities and Corporate Disputes” and “Comparative American Securities Law”, and is a faculty member of the Rotman School of Business / Institute of Corporate Directors’ “Directors’ Education Program.
Quoted, “Supreme Court opens door to national securities regulator”, The Globe and Mail, November, 2018
GIR Know How: Securities and Related Investigations, Canada (L. Ritchie and L. Tomasich), March 2017
Credentials
Education
- London School of Economics, LL.M.
- Osgoode Hall, LL.B.
- University of Western Ontario, B.A. (Economics/Political Science)
Languages
- English
Professional Affiliations
- RCMP IMET National Special Advisory Group, Member