Marni N. MacKay


Family Law | Criminal Law | Civil Litigation

Real Estate | Corporate & Commercial | Wills & Estates


Community Involvement

Bar Admission

Alberta 2020


BA Psychology - Mount Royal University 2016
Juris Doctor - University of Calgary 2019 Gold Medalist

Marni has a general practice of law and can assist you with a wide variety of legal issues. Her primary areas of practice are Family Law, Civil Litigation and Criminal Law. Marni also practices in the areas of Real Estate, Wills and Estates, and Corporate Commercial. 

Marni was born and raised in Medicine Hat. She graduated from McCoy High School in 2012. She then attended Mount Royal University where she played on the women’s varsity volleyball team for 3 years and received her Bachelor of Arts in Psychology in 2016. Marni then attended the University of Calgary and received her Juris Doctor law degree in 2019. Marni was awarded the William A. McGillivray Gold Medal in Law at convocation. 

After convocating, Marni returned home to begin building her legal practice in Medicine Hat.

When Marni is not at work, she can be found spending time with family, exploring the outdoors, or playing beach and indoor volleyball.

Areas of Practice:

Family Law

Criminal Law

Civil Litigation

Real Estate

Corporate & Commercial

Wills & Estates

Diana Donaldson

Kristina Swinford

Diana Donaldson

Diana Donaldson