Lynne O'Brien

Of Counsel
Norton Rose Fulbright Canada LLP

Lynne O'Brien

Lynne O'Brien



Lynne O'Brien is a litigation lawyer based in Toronto.  She has a broad commercial litigation and advisory practice in the areas of financial services, corporate governance, insolvency, securities regulation and fraud.

Lynne also practises estate litigation, providing advice on a range of issues, including will challenges, dependent support and guardian applications, contested passing of accounts, estate administration and disputes involving trusts.

She frequently conducts investigations for clients across a variety of sectors engaging issues of corporate governance, insider trading, fraud, breach of company policies, harassment and workplace-related issues.

Lynne also leads various eDiscovery initiatives across the firm, providing advice and managing client-related matters in a strategic, cost-effective manner.

Lynne has appeared before all levels of court in Ontario.  Her alternative dispute resolution experience includes appearances at arbitrations and mediations in a variety of disputes.

Professional experience

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LL.B., Western University, 1992
B.A., Western University, 1989

  • Ontario 1994

Lynne has acted for the following clients as counsel or as a member of their legal team:

  • Complex litigation involving various corporations, including Porter Airlines Inc., SNC-Lavalin Inc., Hexo Corp. and Domtar Corp.
  • Restructuring and insolvency for various court-appointed officers, including in relation to Sears Canada Inc. and Bondfield Construction Company Limited
  • Financial services litigation
  • Investigations involving several public and private companies as well as public organizations
  • Estate and trust litigation for estate trustees, beneficiaries, trustees and dependents
  • Best Lawyers in Canada: Trusts and Estates, 2023-2024
  • Canadian Bar Association
  • Law Society of Upper Canada
  • The Advocates' Society