Atty. Kathleen M. Ritchie

Atty. Kathleen M. Ritchie

Kathleen Ritchie is a partner in Gowling WLG's Toronto office and is the past leader of the firm's Corporate Finance, M&A and Private Equity Group (2010-2013). She practises securities and corporate law, and has almost 20 years of experience advising on public and private M&A and corporate finance transactions, as well as securities regulatory and corporate governance matters.

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Profile Summary

About Kathleen M. Ritchie at a glance

Kathleen M. Ritchie is a business, m&a, and securities attorney based in Mississauga, Ontario, practicing at Gowling WLG. Admitted to practice in Ontario, Canada. Recognitions include Best Lawyers in America — Corporate Governance Practice (2026), Best Lawyers in America — Corporate Law (2026), and Best Lawyers in America — Mergers and Acquisitions Law (2026). Serands clients in Mississauga, ON and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Kathleen Ritchie is a partner in Gowling WLG's Toronto office and is the past leader of the firm's Corporate Finance, M&A and Private Equity Group (2010-2013)
  • She practises securities and corporate law, and has almost 20 years of experience advising on public and private M&A and corporate finance transactions, as well as securities regulatory and corporate governance matters
  • Kathleen is known by her clients and colleagues for approaching her work with a great deal of intensity, integrity and loyalty
  • She is a strategic and innovative thinker, and thrives on solving problems and “getting the deal done.” Kathleen is currently a member of the Ontario Securities Commission’s 12-member Securities Advisory Committee and, over the past five years, has acted as lead counsel to the Canadian Securities Transition Office on the transactional aspects of the transition from the current system of provincial and territorial securities regulators to a cooperative capital markets regulator within Canada
  • Kathleen's M&A practice involves providing advice on mergers, acquisitions and divestitures, including takeover and issuer bids, plans of arrangement and asset sales, for both public and private companies
  • Kathleen has been involved in several MI 61-101/related-party transactions, including as counsel to special committees
  • She is ranked within The Best Lawyers in Canada 2016 guide in the area of M&A
  • Kathleen's corporate finance practice includes acting on behalf of public companies in public offerings and private placements of both equity and debt securities, including bought deal financings and shelf prospectuses
  • She has extensive experience relating to the creation and acquisition of royalties and streams within the mining industry, having acted for a leading gold royalty and streaming company, as well as mining issuers
  • She is ranked in Who's Who Legal: Mining 2016
  • Kathleen also advises public companies on securities regulatory requirements, including disclosure requirements, stock exchange and related requirements (in particular equity compensation plans and dividend reinvestment plans), regulatory reviews and investigations of disclosure/trading and matters relating to shareholder meetings, including proxy contests
  • Kathleen's corporate governance experience includes advising boards of directors and management, including for not-for-profit organizations, on corporate governance structures, policies, best practices, as well as external rankings, executive and board compensation, stakeholder activism, shareholder rights plans, and officer and director liability
  • She is a long-standing member of the Institute of Corporate Directors

Practice Areas Explained

Kathleen M. Ritchie's Areas of Practice

Each practice area below reflects the types of cases Kathleen M. Ritchie handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Kathleen M. Ritchie is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Ontario →

Mergers & Acquisitions

Kathleen M. Ritchie is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in Ontario →

Securities Law

Kathleen M. Ritchie is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Ontario →

Jurisdictional Context

Why local counsel matters in Ontario

Practicing law in Ontario. Legal matters in Ontario are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Mississauga are typically filed in the local municipal court or the appropriate Ontario state district court, depending on subject matter and amount in controversy. An attorney licensed in Ontario brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Ontario courts without local counsel or pro hac vice admission.

Looking for additional Ontario attorneys? Browse all attorneys in Mississauga or all attorneys in Ontario.

Frequently Asked

Common questions about Kathleen M. Ritchie

Where is Kathleen M. Ritchie's law office located?
Kathleen M. Ritchie's law practice is located in Mississauga, Ontario. The firm is Gowling WLG. You can contact the office directly through this profile page.
What practice areas does Kathleen M. Ritchie handle?
Kathleen M. Ritchie focuses on business, m&a, securities. Each practice area listed reflects experience handling cases of that type in Ontario.
How can I contact Kathleen M. Ritchie for a consultation?
You can contact Kathleen M. Ritchie directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Kathleen M. Ritchie received?
Kathleen M. Ritchie's notable recognition includes: Best Lawyers in America — Corporate Governance Practice; Best Lawyers in America — Corporate Law; Best Lawyers in America — Mergers and Acquisitions Law; Best Lawyers in America — Mining Law; Best Lawyers in America — Securities Law.

Awards

Best Lawyers in America — Corporate Governance Practice
- 2026
Best Lawyers in America — Corporate Law
- 2026
Best Lawyers in America — Mergers and Acquisitions Law
- 2026
Best Lawyers in America — Mining Law
- 2026
Best Lawyers in America — Securities Law
- 2026

Bar Admissions

Ontario, Canada

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