Matthias is developing a broad litigation practice.
Matthias focuses on commercial and administrative disputes and has experience in tax litigation. A dedicated advocate, Matthias has represented clients before administrative entities and before the Federal Court of Appeal, the Federal Court and the Tax Court of Canada.
As a law student, Matthias assisted in human rights litigation at the Center for Health, Human Rights and Development in Uganda.
The Federal Republic of Nigeria
Acting on behalf of the Federal Republic of Nigeria in Canadian proceedings involving the country's efforts to recover assets, including a private jet, from the key figure in the "Malabu Oil Scandal," one of Africa's biggest corruption cases.
Glencore Canada Corporation
Acting for Glencore Canada Corporation in its dispute before the Tax Court of Canada with respect to the tax treatment of break fees.
Amicus curiae of the Supreme Court of Canada
Assisted the amicus curiae of the Supreme Court of Canada in a case raising a question of criminal law applied in a civil context to insurance contracts rules (Desjardins Financial Security Life Assurance Company v Émond, 2017 SCC 19). The Supreme Court unanimously upheld the amicus curiae's position and dismissed the appeal from the bench.
Honeywell International Inc.
Representing Honeywell International Inc. against an action in damages claiming approximately $14 million in damages, brought by Bombardier Inc. and Short Brothers PLC.
Honeywell International Inc.
Representing Honeywell International Inc. against Bombardier Inc. in the context of a $450 million claim in relation to various contracts for the supply by Honeywell of aircraft propulsion units for Bombardier's Challenger 300, Challenger 350 and CSeries programs.
Acted as co-counsel to Airbus SE, a European leader providing tanker, combat and transport aircraft, as well as a global leader in aeronautic, space and related services, in its divestiture of Vector Aerospace Holding SAS to StandardAero Aviation Holdings, Inc.
Triumph Aerostructures, LLC
Acted for Triumph Aerostructures, LLC, in connection with its dispute with Bombardier Inc. regarding the wing designed and manufactured by Triumph for Bombardier's Global 7000 business aircraft, including a $455-million claim filed by Triumph before the Québec Superior Court. The dispute was ultimately resolved to both parties' satisfaction.
Québec Announces New and Expanded Measures to Combat Aggressive Tax Planning
May 21, 2019 - Québec’s Ministry of Finance (Finances Québec) recently published Information Bulletin 2019-5 (Bulletin) setting out new and significantly expanded measures to combat aggressive tax planning. These measures (published on May 17, 2019 and alluded to in the Québec budget of March 21, 2019) are the...
Stewart: CRA Audit Project Gone Awry, co-author
Apr. 01, 2019 - Canadian Tax Highlights, Vol. 27, No. 4
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