Sonja Pavic

Sonja Pavic

Associate, Litigation

Contact Information

tel: 416.862.5661



Sonja is a senior litigation associate with broad experience in complex civil and commercial litigation matters. Her expertise includes securities litigation, regulatory investigations, risk management, class actions and cross-border disputes. As a member of the firm’s Risk Management and Crisis Response Team, Sonja regularly advises clients on regulatory and governance issues and has significant experience conducting internal investigations.

Sonja is also a member Osler’s International Trade and Investment Law Group, with expertise in investment treaty arbitration, international trade law and anti-corruption compliance. She has appeared before all levels of court in Ontario, as well as the Federal Court of Appeal.

In addition to her busy practice, Sonja is a leader in the firm’s pro bono initiatives. She coordinates Osler’s Pro Bono Ontario volunteer programs and maintains an active pro bono practice. Between 2016 and 2017, Sonja spent eight months away from the firm to assist the United Nations High Commissioner for Refugees in Thailand with refugee claim adjudication as part of an emergency backlog project. Prior to articling at the firm, Sonja interned at the United Nations International Criminal Tribunal for Rwanda, as well as the International Centre for the Legal Protection of Human Rights.

    Nieuport Aviation in obtaining a judgment of over $130 million against Porter Airlines in the case of Porter Airlines Inc. v. Nieuport Aviation

    GuestLogix Inc. in proposed securities class action alleging misrepresentations contained in company’s public disclosures relating to certain credit facilities

    Advising several companies on their anti-corruption policies and international trade and investment treaty matters

    Conducting internal investigations

    Representing a European subsidiary of a Canadian mining company in an investor-state arbitration against a member state of the European Union, alleging discriminatory treatment under the terms of a bilateral investment treaty

    A Canadian bank in relation to regulatory inquiries and an internal review of its policies

    Chevron Corp. in defending a claim to enforce a $9.51 billion dollar Ecuadorian judgment related to allegations of environmental pollution in the region of Lago Agrio, Ecuador

    General Motors of Canada Limited in various disputes and ongoing matters relating to the restructuring of its dealer network across Canada, including in the defense of a $40 million claim by five former Saturn dealers

    Comark Inc., one of Canada's leading specialty apparel retailers, in its CCAA proceedings, which was recognized by M&A Advisor as the Cross-Border Restructuring Deal of the Year

  • Barbra Schlifer Commemorative Clinic, Board of Directors
  • Refugee Sponsorship Support Program, Pro Bono Lawyer
  • Pro Bono Law Ontario, Law Help Centre
  • Law Help Ontario, Small Claims Court Duty Counsel Volunteer
  • Interights (2012)
  • Avocats Sans Frontières (2011)

  • Executive Committee Member of the Canadian Bar Association – International Law Section
  • Ontario Bar Association
  • Law Society of Ontario
  • The Advocate’s Society

  • The art of careful drafting in employment agreements, Canadian Corporate Counsel, September 2012 (co-authored with D. Wong).