Atty. Madeleine Dusseault

Atty. Madeleine Dusseault

Madeleine Dusseault is a commercial litigator, and regularly achieves positive and cost-effective results for her clients. Madeleine has appeared before the Ontario Superior Court of Justice (including the Commercial List), the Divisional Court, the Ontario Court of Appeal, and in private arbitrations.

7 yrs experience 7 year
Call (416) 595-8500 Book Appointment

Profile Summary

About Madeleine Dusseault at a glance

Madeleine Dusseault is a business and litigation attorney, practicing at Miller Thomson LLP. They have 7+ years of legal experience, licensed to practice since 2019. Admitted to practice in Ontario, Law Society of Ontario (2019). Educated at University of Toronto (J.D., 2018). Recognitions include Best Lawyers in America — Corporate and Commercial Litigation (2026).

Verified attorney profile · Updated June 2026

About

  • Madeleine Dusseault is a commercial litigator, and regularly achieves positive and cost-effective results for her clients
  • Madeleine has appeared before the Ontario Superior Court of Justice (including the Commercial List), the Divisional Court, the Ontario Court of Appeal, and in private arbitrations
  • Her areas of focus include commercial contract disputes, fraud claims, debt recovery, real estate litigation, shareholder disputes, defamation and professional liability
  • She also has considerable experience with prosecuting and defending matters involving injunctive relief
  • Madeleine prioritizes her clients’ legal and business needs, and is committed to working with clients to find practical, creative and cost-effective solutions to meet their goals
  • Madeleine is a mentor to summer and articling students who aspire to practice in litigation, and is a member of the firm’s student recruitment committee
  • She maintains active memberships in the Advocates’ Society, the Ontario Bar Association, and the Canadian Bar Association

Practice Areas Explained

Madeleine Dusseault's Areas of Practice

Each practice area below reflects the types of cases Madeleine Dusseault 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.

Madeleine Dusseault is one of 501,317 business attorneys indexed nationally. Browse business attorneys →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Madeleine Dusseault is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys →

Frequently Asked

Common questions about Madeleine Dusseault

What practice areas does Madeleine Dusseault handle?
Madeleine Dusseault focuses on business, litigation. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How long has Madeleine Dusseault practiced law?
Madeleine Dusseault has 7+ years of legal experience and has been licensed since 2019.
Where did Madeleine Dusseault go to law school?
Madeleine Dusseault earned their education at (J.D., 2018).
How can I contact Madeleine Dusseault for a consultation?
You can contact Madeleine Dusseault 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 Madeleine Dusseault received?
Madeleine Dusseault's notable recognition includes: Best Lawyers in America — Corporate and Commercial Litigation.

Education

J.D.
University of Toronto
- 2018

Awards

Best Lawyers in America — Corporate and Commercial Litigation
- 2026

Bar Admissions

Ontario, Law Society of Ontario
Admitted: 2019

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.