Nadia Campion

Nadia Campion

Bio

Acknowledged by her clients as a ‘completely fearless’ and an ‘outstanding litigator’, Nadia is engaged in the most complex and demanding files across multiple disciplines including commercial disputes, shareholder oppression applications, director and officer liability, estates and trusts litigation, class actions, and professional liability. Nadia is adept at providing cogent and strategic advice that seamlessly aligns with her clients’ business goals. Fluent in English and French, Nadia also represents clients from Quebec.

A highly persuasive litigator, Nadia has deep industry knowledge and extensive experience in trials, arbitrations and administrative hearings before the Superior Court of Justice and the Ontario Court of Appeal, as well as the Ontario Securities Commission, and the Investment Industry Regulatory Organization of Canada. She has particular expertise in Toronto Commercial List proceedings. She has specific expertise in the fields of corporate and shareholder disputes, corporate fraud, and real estate litigation.

Nadia is a frequent speaker, writer, and commentator for the Law Society of Ontario, the Ontario Bar Association, the Advocates’ Society, and the Cambridge Forum on Class Actions. She is also one of four members of the Class Proceedings Committee, which is part of the Law Foundation, appointed by the Attorney-General of Ontario.

Recognitions

Chambers

  • Chambers Canada 2023-2025: Band 5 - Litigation: General Commercial (Ontario)
  • Chambers Canada 2020-2022: Up and Coming - Litigation: General Commercial (Ontario)

Legal 500

  • The Legal 500 Canada, 2022-2025: Next Generation Partner - Dispute Resolution, Ontario

Benchmark Litigation

  • Benchmark Litigation Star, 2020-2025: Commercial Litigation; Insurance; Professional Liability
  • Benchmark Litigation Top 100 Women in Litigation, Canada 2021-2024
  • Benchmark Litigation Top 50 Women in Litigation, Canada, 2020
  • Benchmark Litigation Future Star, 2019: Commercial Litigation, Insurance, Professional Liability
  • Benchmark Litigation 40 & Under Hot List, 2017-2019

Lexpert 

  • Canadian Legal Lexpert® Directory 2021-2025: Class Actions; Litigation - Corporate Commercial; Litigation - Directors' & Officers' Liability; Litigation - Securities
  • Canadian Legal Lexpert® Directory, 2020: Class Actions; Litigation - Corporate Commercial; Litigation - Securities 
  • Canadian Legal Lexpert® Directory 2019:  Litigation - Corporate Commercial
  • Lexpert Rising Stars, 2018

ALM 500

  • Lexpert®/ American Lawyer Guide - Leading 500 Lawyers in Canada, 2021-2025: Litigation - Corporate Commercial

Best Lawyers

  • The Best Lawyers™ in Canada, 2025: Class Action Litigation; Corporate and Commercial Litigation; Director and Officer Liability Practice; Securities Law
  • The Best Lawyers™ in Canada, 2024: Corporate and Commercial Litigation; Director and Officer Liability Practice; Securities Law
  • The Best Lawyers™ in Canada, 2023: Corporate and Commercial Litigation; Professional Malpractice Law; Securities Law
  • The Best Lawyers™ in Canada, 2020-2022: Corporate and Commercial Litigation; Securities Law
  • The Best Lawyers™ in Canada, Securities Litigation, 2015-2019

Credentials

  • Called to the Ontario Bar, 2006
  • B.A. (with Honours), McGill University (Top 5%)
  • LL.B, University of Ottawa (Magna Cum Laude)
  • JD, Michigan State University (Summa Cum Laude)
  • Certificate in Civil Law from Universidad de Panamericana in Mexico
  • Clerkship: Superior Court of Justice (Ottawa)

Memberships

  • Class Proceedings Committee, The Law Foundation of Ontario, Member
  • Advocates’ Society, Frequent Speaker
  • Ontario Bar Association, Frequent Speaker
  • Trial Lawyers Association, Frequent Speaker
  • Women’s White Collar Criminal Defense Association