Shawn M. Tanguay


Shawn M. Tanguay


Phone: 603.792.7418 Fax: 603.716.2899 Email:

670 N. Commercial Street, Suite 207 Manchester, NH 03101

Assistant: Dominique Bolduc Email:


For almost 20 years, Shawn Tanguay has dedicated his legal practice to advising clients on wide-ranging municipal law issues. A proud native of New Hampshire, Shawn was drawn to the opportunity to help municipal employees with little – if any – legal expertise navigate the maze of applicable legal issues to best serve their communities.

Shawn routinely advises governing bodies, administrators, and other municipal bodies on procedures of law, statutory obligations, and potential legal implications of different courses of action. Sorting through a complicated legal issue can be expensive, and Shawn tries to distill the client’s goal in the situation in order to provide a more direct and cost-effective approach to achieving success.

Shawn also regularly represents his clients in litigation ranging from administrative appeals, district court matters, superior court actions and appeals to New Hampshire’s Supreme Court.  He was one of the lead attorneys in one of New Hampshire’s largest utility tax appeals, which involved approximately 75 municipalities and the state’s two largest utility companies. Shawn successfully defended his clients before the New Hampshire Board of Tax and Land Appeals and on appeal to the New Hampshire Supreme Court.

Shawn and his family embrace the outdoor New Hampshire lifestyle – skiing in the winter and kayaking in the summer. Dedicated to his community, Shawn volunteers with the New London Outing Club (as a coach, committee member, and supporter), and he serves as a judge at the annual “We the People” competition – a civics-based high school program focused on constitutional law.


Suffolk University Law School, J.D., 1998

Saint Anselm College, B.A. Politics,cum laude, 1995

Representative Clients & Matters

DeLucca v. DeLucca, 152 N.H. 100 (2005)

Appeal of City of Lebanon, 161 N.H. 463 (2011)

Appeal of New Hampshire Electric Cooperative, Inc., 170 N.H. 66 (2017)

Appeal of Public Service Company of New Hampshire, 170 N.H. 87 (2017)

Colchester Properties, LLC v. Town of Alton, 2020 WL 4673893 (2020)


New Hampshire Bar Association, Municipal Law Section

Community/Public Service

We the People (Civics competition with emphasis on the U.S. Constitution)

New London Outing Club
Coach, Volunteer, and Site Planning Committee Member

Past Presentations

From October 15, 2022 9:00 am

2022 Municipal Land Use Law Virtual Conference

From September 9, 2021 6:00 pm

Broadband for Your Community: A How-To (Campton, NH)

From September 8, 2021 6:00 pm

Broadband for Your Community: A How-To (Lebanon, NH)

From September 7, 2021 6:00 pm

Broadband for Your Community: A How-To (Haverhill, NH)

From October 31, 2020 12:00 pm

NH Municipal Association and NH Office of Strategic Initiatives 2020 Virtual Land Use Law Conference

From November 13, 2019 10:45 am

2019 New Hampshire Municipal Association Conference & Exhibition

From May 28, 2019 12:00 pm

At the Intersection of Free Speech, Social Media, and Local Government

Practice Areas