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Brooke MacKenzie lawyer

Brooke MacKenzie

is a lawyer for


Practising at Courtyard Chambers on the east side of downtown Toronto, Brooke maintains a litigation and opinions practice focusing on professional regulation, legal ethics, and appellate advocacy.


Areas of Practice

Or, "Why would a lawyer* need a lawyer?"


and Discipline

Advice from someone who can consider the issues objectively--and help communicate your perspective in a productive manner--can make all the difference. Brooke has experience with professional regulators, whether it's reaching a resolution at an early stage, or defending against allegations of professional misconduct in a hearing.

Professional Conduct
and Legal Ethics

Not sure how to handle a possible conflict or confidentiality issue? Starting a law firm or changing existing practices and want to reduce the risk of regulatory concerns down the road? Proactive advice on legal ethics and professionalism can protect your clients and address potential regulatory issues before they arise.

Appeals and
Judicial Reviews

Advocacy on appeal differs from trial advocacy--and specialized experience and a fresh perspective is useful after you've been immersed in a case through a contested hearing. Brooke can act as lead counsel on appeal, join your team as co-counsel, or assist with your appeal factum and oral argument in the background.

*or a paralegal, regulated professional, or law firm



Brooke MacKenzie advises and represents clients in professional regulation matters and in appeals and judicial review applications, and provides advice and opinions to lawyers and law firms on professional conduct issues. She is recognized in Best Lawyers in Canada in the areas of administrative and public law.

Brooke has significant experience as appeal counsel—having appeared on dozens of cases before the Supreme Court of Canada, Court of Appeal for Ontario, Federal Court of Appeal, Divisional Court, and administrative appeal tribunals—and as counsel on professional negligence actions and disqualification motions

In addition to her practice, Brooke is a regular columnist at on legal ethics issues; teaches legal ethics at Osgoode Hall Law School; and serves as duty counsel for licensees at the Law Society Tribunal. Her writing on legal ethics, civil procedure, and tort law has been widely published.

Before going out on her own, Brooke spent several years on Bay Street working with and learning from some of Ontario's best litigators.

When not practising law, Brooke enjoys live music; road trips to national parks and ballparks across the US and Canada; exploring Toronto on her bike; and watching Jeopardy!—a lifelong fan of the show, Brooke became a Jeopardy champion in February 2020.

Brooke Square.jpg

Bar Admissions:

Ontario (2013)


B.A., Queen's University (2009)

J.D., Queen's University (2012)

LL.M., University of Toronto (2016)

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