Susana M.Y. Lee

International Trade Counsel / Ottawa

Susana Lee (Susana May Yon Lee) is an International Trade Counsel and a Certified Customs Specialist in the Ottawa Office of Cassidy Levy Kent. Ms. Lee assists clients with trade remedies, customs, and government procurement matters before the Canadian International Trade Tribunal, and the Canada Border Services Agency. In addition, Ms. Lee helps clients to navigate Canada’s trade controls, including export and import controls, economic sanctions, and defense-related controlled goods. She also works on judicial review proceedings before the Federal Courts of Canada.

Ms. Lee holds joint Juris Doctor (magna cum laude) and Master of Business Administration degrees from the University of Ottawa. She previously interned with the Canadian International Trade Tribunal, assisting legal counsel with various customs issues, such as analyzing tariff classifications and the value for duty of imported goods. During her studies, Ms. Lee also spent a summer in Paris, France completing international law courses (honours) jointly offered through Cornell Law School and the Sorbonne Law School at the Université Paris I Panthéon-Sorbonne.

Ms. Lee is a proud wife, daughter, and mother to her young children.


  • Recognized in Best Lawyers: Ones to Watch in Canada in the area of International Trade and Finance Law

Professional Affiliations

  • Chair, Ontario Bar Association, International Law Section
  • Past Chair, Ontario Bar Association, Young Lawyers Division-East
  • Secretary, Canadian Bar Association, International Law Section
  • Former Board Member, Ontario Bar Association
  • Senior Editor, Canadian International Lawyer Journal
  • Vice Chair of Programming, American Bar Association, International Trade Committee
  • Vice President of Events, Organization of Women in International Trade Ottawa
  • Lawyer Mentor, Youth Leaders in Law Ottawa

Recent Speaking Engagements

  • Speaker, “International Trade Law Insights: Dumping and Subsidies”, Ontario Bar Association (2021)
  • Speaker, “Playing by the Rules? Canada’s Changing Trade Remedies Regime”, Canadian Bar Association (2020)
  • Interviewee, “Advising Clients amid NAFTA Uncertainty”, Law Times (2017)


• Certified Customs Specialist Designate, Canadian Society of Customs Brokers
(Highest Mark in Ontario, 2018)
• J.D., magna cum laude, University of Ottawa (Gowling Lafleur Henderson LLP prize for the highest standing in “International Trade Regulation”).
• M.B.A., University of Ottawa (Beta Gamma Sigma, international business honour society membership; Case competition, business strategy team).
• B.A. & Sc., with First Class Honours, McGill University (Cognitive Science; Cell and Molecular Biology).


  • English
  • Taishanese
  • Cantonese
  • Mandarin (conversational)
  • French (conversational)

Bar Memberships

  • Ontario
  • New York