About
Colin R. Hennessy is a family law attorney at Gjesdahl Law, P.C. in Fargo, where he focuses on resolving complex and sensitive family-related legal issues. His practice includes divorce, child custody, paternity, spousal support, adoption, domestic abuse matters, and collaborative negotiation.
Colin earned his Bachelor of Science in Psychology with honors from the University of North Dakota in 2019. Subsequently, he received his Juris Doctor from the University of North Dakota School of Law in 2022. Colin R. Hennessy is admitted to practice law in both North Dakota and Minnesota.
With a background in competitive athletics, including collegiate baseball, Colin brings discipline, preparation, and teamwork to his legal practice. His approach is grounded in clear communication, legal fundamentals, and a commitment to helping clients navigate challenging transitions.
Colin serves individuals and families in both North Dakota and Minnesota, adhering to a client-first philosophy. Whether assisting with custody disputes, cohabitation agreements, or mediation, he delivers balanced legal representation tailored to each client’s unique needs.
As a member of the North Dakota and Minnesota Bar Associations, as well as the Cass and Clay County Bar Associations and the Ronald N. Davies Inn of Court, Colin R. Hennessy is actively engaged in the legal community. He continues to grow his practice by staying current on evolving laws and applying practical solutions to emotionally complex family law cases.
Colin has quickly earned a reputation for being professional, approachable, and committed to advocating for families. His clients benefit from his strong work ethic, thoughtful legal counsel, and the confidence that comes from working with a knowledgeable and compassionate attorney.
Law Office Affiliations
- Attorney, Gjesdahl Law, P.C.
- Member, North Dakota Bar Association
- Member, Minnesota Bar Association
- Member, Cass County Bar Association
- Member, Clay County Bar Association
- Member, Ronald N. Davies Inn of Court
Licensed State
- North Dakota
- Minnesota
Education
- University of North Dakota School of Law
Juris Doctor (J.D) - University of North Dakota
BS in Psychology
Awards & Badges

- Adoption
- Alimony
- Child Custody
- Child Support
- Divorce & Separation
- Domestic Violence
- Marriage And Prenuptials




