About
William P. Harrie is a Fargo lawyer at Nilles Lawyers with more than 30 years of civil litigation experience involving insurance, business law, and other complex disputes. His practice centers on insurance defense and trial work in first-party disputes and liability claims. He handles personal injury, property damage, products liability, tort, insurance, commercial, business, and intellectual property matters. He has served as an arbitrator in insurance, personal injury, commercial, and employment disputes. He is a Certified Neutral Mediator.
William earned his B.A. from the University of North Dakota and his J.D. with distinction from the University of North Dakota School of Law. During law school, he was elected to the Order of the Coif and the Order of the Barristers. He served as Articles Editor for the North Dakota Law Review. His academic record reflects strong preparation for litigation, legal analysis, and courtroom advocacy.
William hass practice that extends beyond civil litigation to adoption and assisted reproduction matters. He has represented adoptive parents, clients involved in gestational carrier arrangements, and child-placing agencies. He belongs to the American Academy of Adoption Attorneys, a national organization focused on adoption and assisted reproduction law. His professional memberships include the State Bar Association of North Dakota, Minnesota State Bar Association, and Cass County Bar Association. He has received recognition from Super Lawyers and Best Lawyers in America for litigation and insurance work.
William P. Harrie represents clients in disputes that require substantial trial, arbitration, and mediation experience. His work spans insurance defense, commercial litigation, business conflicts, and adoption-related matters. He is admitted in North Dakota and Minnesota and before the US District Court for the District of North Dakota. His background combines decades of courtroom work with experience resolving disputes through arbitration and mediation. He brings that broad litigation perspective to matters involving significant financial, contractual, and legal interests.
Law Office Affiliations
- Attorney, Nilles Lawyers
- Member, State Bar Association of North Dakota
- Member, Minnesota State Bar Association
- Member, Cass County Bar Association
Licensed State
- North Dakota
- Minnesota
Education
- University of North Dakota School of Law
Juris Doctor (JD) - University of North Dakota
Bachelor of Arts (BA)



- Business Litigation
- Limited Liability Company (LLC)
- Products Liability
- Adoption




