Matti Lemmens


[email protected]
Matti is an experienced advocate who practices in all areas of commercial litigation.
She has experience representing Canadian and international clients in both domestic and international litigation and arbitrations, handling many cross-border matters.

Matti has appeared before all levels of the Alberta courts, the Supreme Court of Canada, the trial and appeal courts of the Federal Court of Canada, the Nova Scotia Supreme Court, the Ontario Superior Court of Justice, the Supreme Court and Court of Appeal of the Falkland Islands, and the Judicial Committee of the Privy Council.

Matti leads the Environmental Group in BLG’s Calgary office. She is a member of the firm's Environmental, Social and Governance (ESG) initiative.

Matti provides legal services through a Law Corporation.


  • Representing clients in various insolvency matters, including the monitor in cross-border restructurings, the receiver in various Alberta receiverships and creditors in various Canadian insolvency proceedings.
  • Representing clients before the ICC International Court of Arbitration.
  • Representing international oil & gas companies in environmental contamination disputes.
  • Representing clients in relation to intellectual property disputes, including copyright infringement, breach of confidentiality and trademark infringement.
  • Representing clients on environmental aspects of transactions.

Beyond Our Walls

Professional Involvement

  • Member, Law Society of Alberta
  • Member, Canadian Bar Association, Insolvency South, Environmental South and Litigation South Sections / Alberta Justice and Advocacy Committee
  • Member, International Bar Association, Insolvency and Young Lawyers Sections
  • Member, International Association of Restructuring, Insolvency & Bankruptcy Professionals (INSOL)
  • Member, Turnaround Management Association
  • Member, Young International Arbitration Group / London Court of Arbitration
  • Member, International Chamber of Commerce (ICC) Young Arbitrators Forum
  • Member, Young International Council for Commercial Arbitration (ICCA)
  • Member, World Petroleum Council Young Writers Fellowship
  • Member, International Centre for Dispute Resolution
  • Member, Canadian Association of Petroleum Producers (CAPP) Geophysical Committee
  • Member, CBA South Section Legislative Review Committee
  • Corporate Director, Arbitration Dispute Resolution Institute of Canada (ADRIC)

Community Involvement

  • CPLED Learning Group Facilitator, Law Society of Alberta

Awards & Recognitions

  • Recognized in the 2022 (and since 2020) edition of the Benchmark 40 & Under Hot List
  • Recognized in the 2022 (and since 2019) edition of Benchmark Canada – The Definitive Guide to Canada’s Leading Litigation Firms & Attorneys (Future Star).
  • Awarded 2014 International Bar Association Scholarship for Insolvency Section on Liability of Directors of Insolvent Corporations for Environmental Liabilities

Bar Admission & Education

  • Alberta, 2010
  • BA (Hons., with Distinction), University of Alberta, 2006
  • LLB with a specialization in environmental law, Dalhousie University, 2009 (included an exchange program at Vrije Universiteit in Amsterdam, The Netherlands and an international intellectual property exchange program at St. Peter’s College, Oxford University in Oxford, England)