Expertise
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Practice Areas:
Bar Admissions:
Education:
- University of Toronto (1967) LLB (Honours Standing)
- University of Toronto (1965) MA (Modern Languages and Literature)
- University of Toronto (1964) BA (Modern Languages and Literature)
Details
- Bio
- Cases
- Associations
- News & Media
- Recognition
Alan J. Lenczner , Q.C.
"Alan J. Lenczner is a dean of the commercial litigation bar who has built a stellar reputation in the world of corporate-commercial clashes, and for the past four decades he has acted on some of the biggest matters hitting the docket." — Canadian Lawyer
Widely acknowledged as one of Canada's leading litigators, Alan has applied his skills and insight as an advocate to yield precedent-setting decisions in nearly every area of civil litigation. Since 1969, he has pursued an intensive trial and appellate practice with emphasis on civil commercial matters, complex construction cases, professional liability and corporate securities litigation. Drawing on an extraordinary depth of experience in mastering complex issues, he appears regularly before courts at all levels across the country, as well as many professional and government tribunals. He has also appeared as counsel before the High Court and the Court of Appeal in the U.K. In aggregate, he has argued more than 300 full trials and appeals.
A frequent lecturer on a broad range of legal subjects, from fiduciary duties to constitutional law, Alan has helped to guide a generation of lawyers into the profession. He has taught trial advocacy at the University of Toronto and Osgoode Hall law schools and also participates in an annual one-week trial advocacy program for the Quebec Bar.
Alan was appointed Queen's Counsel in 1982.
In aggregate, Alan has argued more than 200 full trials and appeals, including Pezim v British Columbia (Superintendent of Brokers), Standard Investments v CIBC, International Corona Ltd, v Lac Minerals Ltd, Tagish v Prime Resources Ltd, Yaiguaje v Chevron, Ontario Securities Commission v West, Penvidic Contracting Ltd. v INCO, Society of Lloyds v Daly, Standard Investments Ltd v Nova Scotia Savings and Loan, Kerr v Danier Leather Inc, Link v Venture Steel Inc and Smith v Inco Ltd.
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Counsel for Mayor of Caledon in an application brought pursuant to the Municipal Conflict of Interest Act, which resulted in all allegations being dismissed.
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Angus v The Corporation of the Municipality of Port Hope
Counsel to the applicants in a successful proceeding to enforce a trust in favour of municipal ratepayers.
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Pusateri's Yorkville Ltd v City of Toronto
Counsel to Pusateri's in a motion for an injunction to restrain the removal of a traffic lay-by.
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Counsel to an international organization in an appeal at the Supreme Court of Canada relating to the immunities of international organizations in criminal proceedings.
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Yaiguaje v Chevron Corporation
Counsel for the Ecuadorian plaintiffs in a Canadian action for an order recognizing a $9.51 billion (USD) Judgment obtained in Ecuador against Chevron Corporation regarding oil pollution in the Amazon. Successful respondents in an appeal to the Supreme Court of Canada of the jurisdictional challenge of the action for recognition and enforcement.
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Counsel to the non-party appellant in a dispute over production of financial records for purposes of a valuation of a commercial enterprise.
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Counsel for Robert Ford, the former Mayor of Toronto, in application alleging breach of the Municipal Conflict of Interest Act.
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Counsel to Inco Ltd. in a mass tort class proceeding alleging nuisance and a reduction in property values resulting from emissions of copper, cobalt, nickel, lead and other industrial waste. The trial judge had found for the class and gave judgment for $36 million in property damages. On appeal, the plaintiffs' class action claims in the amount of $36 million were dismissed.
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Counsel to the Chief Executive Officer and certain directors in a shareholder class action alleging fraud and misrepresentation through press releases, prospectus statements and accounting relating to gold reserves in a large property in Busang, Indonesia.
Read Lexpert's Significant Matters summaries (CA and ON SC).
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PreMD Inc v Ogilvy Renault LLP
Counsel in a damages trial and appeal arising from failure to pay a maintenance fee on a US patent.
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American College of Trial Lawyers - Fellow
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The Advocates' Society
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Ontario Bar Association
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Lenczner Slaght Shines in 2017 Lexpert Rankings
Lenczner Slaght’s litigators continue to be recognized by their peers as leading practitioners in their fields according to the 2017 Canadian Legal Lexpert Directory.
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Lenczner Slaght lawyers recognized in Lexpert ALM 500 Guide
Canada’s leading litigation boutique leads all firms with 10 lawyers ranked in litigation practice areas in the 2017 Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada (“ALM 500”)
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OSC commissioner uses decision to air his views on regrettable absence of national regulator
Alan Lenczner was quoted in the Toronto Star article OSC commissioner uses decision to air his views on regrettable absence of national regulator on December 16, 2016.
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Ontario Superior Court of Justice dismisses all allegations against the Mayor of Caledon in an application brought pursuant to the Municipal Conflict of Interest Act.
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16 Lenczner Slaght Lawyers Ranked as Canada's Leading Litigators
Number of Lenczner Slaght lawyers ranked in the year-end Lexpert Special Edition published in conjunction with Report on Business magazine jumps to 16.
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Peers Recognize Lenczner Slaght's Expertise in Cross-border Litigation
Fifteen Lenczner Slaght lawyers have been ranked in the Lexpert 2016 Guide to the Leading U.S/Canada Cross-Border Litigation Lawyers in Canada
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Lenczner Slaght Lawyers Ranked Best
Nearly half of the firm’s lawyers recognized among Canada’s foremost practitioners
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23 Lenczner Slaght Lawyers Ranked in 2016 Lexpert Directory
This year, the Canadian Legal Lexpert® Directory increased the number of Lenczner Slaght lawyers ranked among the best in Canada to 23, up from 20 in 2015.
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Supreme Court upholds World Bank's Immunity
The Supreme Court of Canada has ruled that the World Bank cannot be compelled to produce internal documents from an investigation into foreign corruption that resulted in the Royal Canadian Mounted Police laying criminal charges in Canada.
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Lenczner Slaght Remains Among Top in Chambers Global Rankings
Canada's leading litigation practice recognized in tier one for 14 consecutive years.
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The Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada (2012 - 2015)
Class Actions, Corporate Commercial Litigation
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Benchmark Canada (2012-2015)
Local Litigation Star - General Commercial, Professional Liability and Regulations, Securities
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Best Lawyers (2006-2016)
Bet-the-Company Litigation, Class Action Litigation, Corporate and Commercial Litigation, Director and Officer Liability, International Arbitration, Medical Negligence, Legal Malpractice Law, Securities Law
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Canadian Lawyer (2013)
Top 25 Most Influential Lawyers - Corporate Commercial Law
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Canadian Legal Lexpert® Directory (2012-2017)
Class Actions, Commercial Arbitration, Litigation - Corporate Commercial, Litigation - Directors' & Officers' Liability, Litigation - Securities, Professional Liability
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Chambers Global (2012-2015)
Dispute Resolution: Ontario: Canada
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Lexpert Guide to the Leading US/Canada Cross-border Litigation Lawyers in Canada (2015)
Commercial Litigation, Class Actions, Securities Litigation
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Lexpert Guide to the Leading US/Canada Cross-border Litigation Lawyers in Canada (2015)
Commercial Litigation, Class Actions, Securities Litigation
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Lexpert Zenith Award (2012)
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Lexpert® Guide to the Leading US/Canada Cross-border Litigation Lawyers in Canada (2013-2014)
Class Actions, Corporate Commercial, Securities
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