Tereposky & DeRose LLP
Automatically compiled listing. Details may contain errors.10 lawyers · Established 2017 · City of Ottawa
One of 436 law firms listed in Ottawa.
About Tereposky & DeRose LLP
Tereposky & DeRose LLP is a small Ottawa firm founded in 2017 that practises exclusively in international trade and investment law. Its work covers World Trade Organization and regional trade agreement disputes, investor-state arbitration, Canadian anti-dumping and countervailing duty cases, government procurement, export and import controls, and economic sanctions. About ten lawyers make up the team, working alongside an in-house economist and a legal consultant on cross-border files.
Much of the firm's public case work involves defending Mexico's government in investor-state arbitrations arising from NAFTA and the treaties that followed it. In November 2025, an ICSID tribunal dismissed a US$2.7 billion claim against Mexico that the firm helped defend for the Secretaria de Economia. Earlier wins for Mexico include the dismissal of a US$472 million NAFTA claim in 2020 and an US$80 million multi-party claim in 2022. The firm's lawyers also appear before the WTO, the Canada Border Services Agency, and the Canadian International Trade Tribunal.
Practice areas
Not listed
In the community
- In 2026, a summer student at the firm received the Mathew Good Memorial Prize from the British Columbia Law Institute.
Good to know
Wheelchair accessible
LGBTQ+ friendlyLawyers 10
This firm’s lawyers at a glance
- Called to the bar
- 1992–2026 · median 10 years in practice 9 of 10 lawyers
- Law schools
- University of Ottawa (5), King's College London, Osgoode Hall Law School, Osgoode Hall Law School, York University, Queen's University, University of British Columbia 10 of 10 lawyers
- Languages on the roster
- English, French, Italian, Spanish
Where to find them
Suite 1000, 81 Metcalfe Street, Ottawa, Ontario K1P 6K7 · 613-903-7015
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