Mary I.A. Buttery, Q.C.

Mary I.A. Buttery, Q.C.
Telephone: 604 691 6118
Fax: 604 691 6120

Suite 2200, HSBC Building
885 West Georgia Street
Vancouver, BC V6C 3E8

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"A fantastic lawyer and a wonderful person." - Client Testimonial, Chambers Canada

Mary Buttery has gained national recognition for her involvement in countless significant insolvency files and many prominent litigation matters.

Specializing in the area of commercial insolvency and complex, multi-party litigation, Mary represents financial institutions, debtors and creditors, receivers and trustees in matters related to debt restructuring, corporate reorganizations, loan workouts, fraudulent preference actions, bankruptcy and receiverships. Mary has extensive experience in many different sectors, most notably, mining, retail, real estate, forestry and natural resources. She has also served as counsel in class action matters involving automobile wire harnesses and lithium ion battery price fixing.

Mary regularly advises clients who are experiencing financial difficulty, or whose customers’ or suppliers’ insolvency affects their business. In addition, Mary is an experienced commercial litigator, with expertise in the enforcement of foreign judgments, debt enforcement and fraud. She has appeared in all levels of the Ontario and British Columbia courts, the Federal Court, and has been lead counsel in the Supreme Court of Canada.

Mary is recognized by numerous legal directories as a leader in her field and has served as an Adjunct Professor of Law at the University of British Columbia, where she taught insolvency law to upper-year students. She has also authored several articles on varied topics in her area of practice.

In 2018, Mary was appointed Queen's Counsel in British Columbia.

Representative Experience

  • Co-counsel to Walter Canada Energy Holdings, Inc. in its restructuring under the Companies’ Creditors Arrangement Act
  • Counsel to a major US-based gold mining group in its cross-border insolvency pursuant to Part IV of the Companies’ Creditors Arrangement Act
  • Counsel to the court-appointed Monitor of Yukon Zinc Corporation
  • Counsel to the court-appointed Receiver of Maple Leaf Loading, a multi-jurisdictional trucking company
  • Canadian counsel to the court-appointed liquidator in world-wide liquidation and asset tracing proceedings with proceedings in Australia, Hong Kong, London and the Cayman Islands
  • Counsel to the Government of the Northwest Territories in relation to the restructuring of North American Tungsten Corporation Ltd., a major tungsten mining operation in the Northwest Territories and Yukon
  • Acted for the petitioners, Douglas Channel, in the first Liquefied Natural Gas restructuring in British Columbia
  • Counsel for the petitioners, Arthon Industries, in the restructuring of the Arthon Group of Companies, which includes interests in mining, construction, and aggregate
  • Counsel for Stanfield Mining, a potential purchaser of copper mining assets
  • Acted for the Lemare Lake group of companies on a complex forestry restructuring

Client Commentary

  • “’Extremely well regarded’ and a ‘great advocate for her clients.’” – Chambers Canada (Restructuring/Insolvency)
  • "A fantastic lawyer and a wonderful person." – Chambers Canada (Restructuring/Insolvency)
  • “A ‘top practitioner’ and a ‘great litigator’” – Chambers Global (Restructuring/Insolvency)


University of Windsor, LL.B., 1991

Publications, Newsletters and Articles

Alberta Court of Appeal Releases Anticipated Decision in Canada v Canada North Group Inc.

Conferences, Speaking Engagements, Events

Proud Sponsor of Benchmark Litigation's Women in Litigation Vancouver Forum: Featuring Expert Insights from Mary Buttery

Proud Sponsor of ARIL's 15th Conference (2018): Featuring Expert Insights from Mary Buttery and Jared Enns

Call to the bar

British Columbia, 1997
Ontario, 1993


  • Former Adjunct Professor, University of British Columbia Law School
  • Lecturer, Continuing Legal Education Society of British Columbia
  • Member, British Columbia Law Society
  • Member, Law Society of Ontario
  • Member, Civil Litigation, Insolvency and Banking Subsections, B.C. Branch, Canadian Bar Association
  • Member, The Insolvency Institute of Canada (IIC)
  • Member, Turnaround Management Association
  • Member, American Bankruptcy Institute
  • Member, Editorial Advisory Board of CAIRP (Canadian Association of Insolvency and Restructuring Professionals)
  • Member, Editorial Board of the Annual Review of Insolvency Law


  • Appointed Queen's Counsel
  • Benchmark Canada (Litigation Star, Insolvency)
  • The Best Lawyers in Canada (Insolvency and Financial Restructuring)
  • Canadian Legal Lexpert Directory (Insolvency & Financial Restructuring - Insolvency Litigation; Insolvency & Financial Restructuring - Financial Restructuring)
  • Chambers Canada (Restructuring/Insolvency)
  • Chambers Global (Restructuring/Insolvency)
  • The Legal 500 Canada (Restructuring and Insolvency)
  • Winner, Lexpert "Zenith" Award
  • Winner, Lexpert "Rising Star" Award
  • Who’s Who Legal: Canada (Restructuring & Insolvency)
  • Martindale-Hubbell, Distinguished® Peer Review Rated

Pro Bono/Community Involvement

  • Member, Board of Directors, BC Cancer Foundation
  • Member, Board of Governors, Vancouver Aquarium
  • Assistant Coach, West Vancouver Field Hockey Association
  • Class Parent Volunteer, Collingwood School
  • Mary was recognized in the Vancouver Sun for her community leadership in association with Minerva Foundation for B.C. Women's Follow a Leader™ Vancouver program (October 2008)



Competition, Antitrust & Foreign Investment
Restructuring & Insolvency