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Affleck Greene McMurtry LLP | Barristers
Kenneth A. Dekker

Kenneth A. Dekker

Kenneth A. Dekker

Lexology Legal Writing Awards Winner 2010 (Ken Dekker)

Ken Dekker, a partner of the firm, is a successful trial and appellate lawyer who is valued by his clients as a resourceful and practical litigation counsel. Over more than two decades, Ken has litigated noteworthy cases in a range of fields that include class action defence, securities and broker-dealer litigation and regulatory defence, corporate and shareholder disputes (including oppression and winding up cases), defamation, civil fraud litigation, disputes over contracts, injunctions, professional liability litigation, employment litigation and cross-border litigation issues.

Ken has appeared before all levels of courts in Ontario, including the Ontario Court of Justice, the Superior Court of Justice, the Divisional Court and the Court of Appeal for Ontario, as well as before the Supreme Court of Canada. Ken also represents and advises clients in regulatory matters before the Investment Industry Organization of Canada (IIROC), the Mutual Fund Dealers Association of Canada (MFDA) and the Ontario Securities Commission (OSC).

Ken has been ranked as Repeatedly Recommended for Securities Litigation by Lexpert, for Corporate and Commercial Litigation by Best Lawyers of Canada, and he has been given the highest available rating of AV, or pre-eminent, by his peers on Martindale-Hubbell.”


  • Representing an auditor named as a defendant in a large securities class action - both in the class action court and in insolvency proceedings brought by the principal class action defendant.
  • Litigating numerous proceedings involving allegations of negligence and/or misconduct against investment advisors and other financial services professionals.
  • Representing investment industry and capital markets participants, including directors and officers of public companies, in regulatory investigations and hearings, including matters before the OSC, IIROC and the MFDA.
  • Assisting financial services firms in responding to fraud and misappropriation allegations involving their agents or employees - including the identification and resolution of civil liability, regulatory, and/or insurance coverage issues that arise from such allegations.
  • Litigating disputes among owners of closely held corporations and members of joint ventures.
  • Litigating shareholder claims arising from corporate misrepresentations and/or oppressive conduct.
  • Helping a food processor obtain a judgment requiring its insurer to cover losses suffered during the August 2003 blackout that affected much of Eastern North America.
  • Prosecuting and defending numerous defamation actions.
  • Bringing and responding to proceedings against former employees to prevent unfair competition or the improper use or disclosure of confidential or sensitive information.

Practice Areas

  • Corporate and Commercial Litigation
  • Securities Litigation
  • Shareholder & Partnership Disputes
  • Regulatory and Administrative Law

Other Practice Areas

Show More Practice Areas
  • Civil Litigation
  • Employment Law
  • Enforcement of Foreign Judgments
  • Foreign Law
  • Injunctions
  • Insurance Litigation
  • Intellectual Property
  • Intellectual Property Litigation
  • Partnership Litigation
  • Professional Malpractice Litigation
  • Securities
  • Shareholder Disputes


  • Partner, Affleck Greene McMurtry LLP, 2006-Present
  • Associate, Affleck Greene McMurtry LLP, 2003-2006
  • Associate, Kelly Affleck Greene, 1998-2003
  • Called to the Bar, Ontario, 1998


  • LL.B., Dalhousie University, Halifax, Nova Scotia (1996)
  • B.A., Honours in History; University of King's College, Halifax, Nova Scotia (1992)

Memberships & Associations

  • Member of The Advocates' Society
  • Associate Member of The American Bar Association
  • Member of the Securities Industry and Financial Markets Association – Compliance and Legal Division (SIFMA-CL)