Kathryn Manning

Partner
416-238-7461

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Education

  • Bachelor of Laws (LLB), Queens University (1996)
  • Bachelor of Arts (BA) with Honours, University of Toronto (1993)

Bar Admission

  • Ontario (1998)

Kathryn is a Founding Partner in DMG Advocates. Kathryn has a broad civil litigation and arbitration practice that includes acting as counsel and an arbitrator in complex commercial disputes. Her experience includes shareholder disputes, officer and director liability, product liability litigation, complex contract disputes, civil fraud proceedings, tort litigation, employment litigation, professional negligence, and class actions. Kathryn regularly acts in cross-border matters, including assisting foreign clients with enforcement of judgments in Canada.

Kathryn represents individuals and organizations both in the Canadian courts and in commercial arbitration proceedings. Her clients are a mix of public companies, closely held corporations, and individual businesspeople. Kathryn’s clients rely on her for practical, strategic advice at every stage of a dispute, all with a view to maximizing their business goals and achieving cost efficiencies. Kathryn leverages technology at all stages of a matter.

In addition to her trial and arbitration experience, Kathryn has expertise in complex motion and appellate advocacy. Her experience also includes obtaining, executing, and enforcing Anton Piller and Mareva injunctions to preserve assets at the outset of litigation in civil fraud matters.

Kathryn acts as an Arbitrator and Mediator of commercial disputes. She holds a Q. Arb designation from the ADR Institute of Canada and a certificate from ADRIC in its Med-Arb Foundational Course. She is a member of the Toronto Commercial Arbitration Society, the Chartered Institute of Arbitrators, and Arbitral Women. When acting as Arbitrator, Kathyrn’s goal is to run proceedings that are efficient and cost-effective, utilizing procedures that parties agree on to get to a hearing much more quickly than in the court system.

Kathryn has been ranked among Canada’s best commercial litigation lawyers by Best Lawyers Canada, Benchmark Litigation, Lexology Index (formerly Who’s Who Legal Canada), and Post Toronto.

Kathryn is the Immediate Past President of the Ontario Bar Association – the largest voluntary legal association in the province. She has been a member of the OBA since she was called to the Bar in 1998. Since then, Kathryn has held several Board and Officer positions, including serving as OBA President for the 2024-2025 term, as well as representing the Toronto Region on the OBA Council.

Kathryn sits on the Ontario Civil Rules Committee and is a member of its Artificial Intelligence Subcommittee. She is also a member of The Advocates’ Society and the Toronto Lawyers’ Association.

  • Ontario Bar Association (Past President)

  • Toronto Commercial Arbitration Society

  • ADR Institute of Canada

  • Women in Arbitration

  • The Advocates’ Society

  • International Network of Boutique Law Firms

  • Best Lawyers (2023-2025)
    Corporate and Commercial Litigation
  • Benchmark Litigation (2023-2025)
    Top 100 Women in Litigation
  • Benchmark Litigation (2021-2025)
    Litigation Star: Commercial, Securities, Product Liability and Recall
  • Lexology Index (2024)
    Global Elite Thought Leader
    Commercial Litigation – e-Discovery
  • Corporate INTL (2024)
    Who’s Who Lawyer 2024
  • Toronto’s Top Lawyers (2021-2023) Post Toronto
  • Who’s Who Legal Canada (2015-2022)
    Commercial Litigation: eDiscovery
  • Med-Arb Foundational Course Certificate
    ADRIC (May 2025)
  • Certificate in eDiscovery, Records Management, Information Governance and Privacy
    Osgoode (2013)
  • Business Leadership for Women Lawyers Certificate
    Rotman School of Business (2011)
  • Speaker: US and Canadian Perspectives on Tackling Challenges in Today’s Legal Profession, Canadian Bar Association and American Bar Association joint program, ABA Annual Meeting, August 8, 2025
  • Chair: Civil Leaders’ Summit, Ontario Bar Association, July 18, 2025
  • Panelist: Digital Evidence in Practice: Presenting Digital Evidence, Digital Evidence for Litigators, The Advocates’ Society, March 3, 2025
  • Panelist: The Latest on Privilege, The 19th Annual Civil Litigator’s Survival Guide to Evidence, Osgoode PD, January 22, 2025
  • AI Trial Advocacy: Your Guide to Handling the Evidentiary Implications of Artificial Intelligence – Day 1: In Advance of Trial, Ontario Bar Association, November 1, 2024
  • Panelist: Reimagining Redferns: 25 Years Later, Chair/Panelist: ADR Institute of Canada, October 21, 2024
  • Panelist: Common Privilege Issues Encountered in eDiscovery
    Osgoode Certificate in eDiscovery, Information Governance and Privacy, September 18, 2024
  • Panelist: AI, File Management and eDiscovery
    Artificial Intelligence for Litigators: AI in Action Program, The Advocates Society, April 16, 2024
  • Panelist: The Highs and Lows of Hybrid Hearings
    Society of Ontario Adjudicators and Regulators, June 7, 2023
  • Chair: Ontario Legal Conference
    Ontario Bar Association, In Person, May 4, 2023
  • Moderator: Judicial Competencies: Certificate Program Session 1 – Judicial Application and Appointment Process
    Ontario Bar Association, May 3, 2023
  • Author: The Oppression Remedy’s Broad Reach – Personal Liability of Officers and Directors and Creditors as Claimants
    The Annual Review of Civil Litigation – 2022, Thomson Reuters Canada, Fall 2022
  • Moderator: Judicial Competencies: Certificate Program Sessions 6, 2 and 1 – Basics of Judicial Reasoning; Judicial Independence; Judicial Application and Appointment Process
    Ontario Bar Association, April 7, 2021, May 19, 2021 and April 14, 2022
  • Panelist: Introducing Evidence at Trial
    Your First Civil Trial, Ontario Bar Association, March 4, 2021 and March 31, 2022
  • Panelist: Gathering, Preserving and Disclosing Digital Evidence
    Digital Evidence for Litigators, The Advocates Society, March 30, 2022
  • Editorial Team Member: The Sedona Canada Principles, Third Edition
    The Sedona Conference, Working Group 7, Sedona Canada, January 2022
  • Co-Editor: Enforcement of Money Judgments – Canada Chapter (Common Law Jurisdictions)
    Juris Publishing Inc., 2019; 2021
  • Co-Chair: Ontario Digital Evidence and e-Discovery Institute
    Ontario Bar Association, November 25, 2020 and November 22, 2021
  • Co-Author: International Liability of Corporate Directors – Canada Chapter
    Center for International Legal Studies, November 2021

  • Speaker: Common Privilege Issues Encountered in e-Discovery
    Osgoode Certificate in e-Discovery, Information Governance and Privacy, September 21, 2021

  • Co-Author: Rule 60.01-60.10 Chapter
    Civil Procedure and Practice in Ontario, Noel Semple (ed.), Canadian Legal Information Institute, September 2021 (2021 CanLIIDocs 1981)

  • Moderator: Pre-Trials for Young Lawyers: A Virtual Chat with Justice Akbarali
    Toronto Lawyers’ Association, April 16, 2021

  • Panelist: E-Hearing – Is it a Revolution?
    Council of Federal Tribunal Chairs, November 26, 2020

  • Panelist: Master Remote Commissioning and the Effective Management of Digital Documents
    Ontario Bar Association, November 19, 2020

  • Panelist: Virtual Civil Litigation: Tips, Tricks and Practical Insights
    Thunder Bay Law Association, October 29, 2020

  • Author: E-Litigation in a Covid-19 World
    Presented at The Six Minute Debtor-Creditor and Insolvency Lawyer, Law Society of Ontario, Toronto, Ontario, October 28, 2020

  • Panelist: Today’s Advocacy Challenge
    Mastering Remote Interactions with the Courts, Ontario Bar Association, Toronto, Ontario, April 21, 2020

  • Panelist: Anton Piller and Mareva Orders
    A Deep Dive Into Injunctions and Extraordinary Remedies, Ontario Bar Association, Toronto, Ontario, December 11, 2019

  • Panelist: Technology, Litigation and the Law
    Ontario Bar Association, Toronto, Ontario, October 28, 2019

  • Moderator: Breaking the Glass Ceiling
    Women in Litigation Toronto Forum, Benchmark Women in Litigation, October 24, 2019

  • Speaker: Preparing for an Electronic Trial or Arbitration
    The Advocates Society, Toronto, Ontario, April 9, 2018

  • Panelist: Sharing Success Strategies – Private Practice Excellence
    Ontario Bar Association, Toronto, Ontario, October 12, 2017

  • Speaker/Author: Privacy Update for Business Lawyers
    The Six Minute Business Lawyer, Law Society of Upper Canada, Toronto, Ontario, June 13, 2017

  • Co-Chair: Ontario E-Discovery Institute
    The Advocates Society/Ontario Bar Association, Toronto, Ontario, October 2017, 2016, 2015 and 2014

  • Speaker/Author: Privacy and Social Media Minefields – Advising Business Clients How to Protect Themselves
    The Six Minute Business Lawyer, Law Society of Upper Canada, Toronto, Ontario, June 8, 2016

  • Panelist: E-Discovery Essentials
    Ontario Bar Association, Toronto, Ontario, October 13, 2015

  • Panelist: Discovery Planning – Key Issues and Strategies
    Ontario Bar Association, Toronto, Ontario, April 14, 2015

  • Author/Presenter: Privilege and Confidentiality Issues in the Context of E-Discovery
    The Ontario e-Discovery Institute: e-Discovery for All Cases and All Lawyers, Toronto, Ontario, September 19, 2011

  • Author/Presenter: Admissibility of Electronic Evidence
    Federated Press: 5th E-Discovery Course, Toronto, Ontario, March 22, 2011

  • Author/Presenter: Anton Piller Orders – Practical Considerations
    Presented at Injunctions: Winning the Case Before Trial, Ontario Bar Association, October 27, 2010

  • Author/Presenter: Electronic Discovery on “Small” Files in the Big Firm Setting
    Presented at Electronic Discovery and the Sedona Canada Principles: Best Practices for Dealing with Electronic Information, Toronto, The Law Society of Upper Canada, May 31, 2007

  • Author/Presenter: Recent Developments in Product Liability and Consumer Class Actions
    Insight, Class Actions: The Second Annual Litigators’ Conference, January 27, 2003

  • Co-author: Liability for Misrepresentation in the Distribution of Securities in Canada
    Litigation Issues in the Distribution of Securities: An International Perspective, Kluwer Law International and International Bar Association (London: 1997)

Awards & Recognition