Matti Lemmens

Matti Lemmens  


Executive Summary

Matti Lemmens is a partner in our Commercial Litigation Group, and the Environmental Group Leader in our Calgary office. Matti practices in all areas of commercial litigation. In particular, she has experience representing Canadian and international clients in litigation and alternative dispute resolution, including both domestic and international arbitrations, involving:

  • insolvency and banking litigation;
  • environmental disputes;
  • intellectual property disputes;
  • oil & gas matters; and
  • advising on environmental aspects of commercial transactions.

Matti has appeared before the Provincial Court of Alberta, the Court of Queen’s Bench of Alberta, the Nova Scotia Supreme Court, the Ontario Superior Court of Justice, the Supreme Court of the Falkland Islands, the Federal Court (Canada), the Alberta Court of Appeal, and the Supreme Court of Canada​.

Representative Work

  • Representing clients in various insolvency matters, including the monitor in cross-border restructurings, the receiver in various Alberta receiverships, 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.

Publications & Presentations


Rankings & Recognitions

  • Recognized in the 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