Katie A. Mosher


Locations: Concord, NH
Phone: 603-223-2899
Fax: 603-226-2404
Email: kmosher@sulloway.com

Areas of Practice

Labor & Employment Law
Business Law

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Katie A. Mosher is an Associate at Sulloway & Hollis. She works with a broad base of clients, including businesses, public entities, insurance companies, non-profit organizations, and individuals in business, regulatory, and litigation matters. Katie joined the firm in 2021 and works in our Concord, NH office.

Sulloway & Hollis has been providing clients with the highest quality legal services since 1852. Headquartered in Concord, NH, we are one of the oldest and most respected law firms in the state. Over the years, we have steadily and purposefully evolved to meet the changing needs of our clients and their markets. Today, Sulloway & Hollis is a regional firm with offices across New England, working for a broad range of clients in a diverse array of industries. While our unwavering commitment to client service, personal relationships, and problem-solving has never changed, Sulloway has embraced proven technology advancements that allow us to be more accessible and responsive to our clients.

Ms. Mosher received her Juris Doctor, with honors, from the University of New Hampshire School of Law in Concord, NH. She was a member of the Daniel Webster Scholars Honors Program, a first-of-its kind, client-ready legal education that allows students to graduate without the need to take the traditional two-day bar exam. During law school, Katie was a legal resident for the Hillsborough County Superior Court (Northern District) in Spring 2020 and for New Hampshire Legal Assistance (NHLA) in the Spring 2021. She also participated in the UNH Law Immigration Clinic with the ACLU of NH’s Immigrant Rights Project during the Fall of 2020.

At UNH Law, Katie was a Senior Editor for the UNH Law Review, a Teaching Assistant (TA) for Pretrial Advocacy and Dispute Resolution courses, the President of the Student Bar Association (SBA) and the President of the Women’s Law Student Association (WLSA). Katie also served as a volunteer for the U.S. District Court of N.H.’s educational outreach program and as a Campus Security Officer.

She graduated magna cum laude from Wheaton College in Norton, Massachusetts where she received her Bachelor of Arts in International Relations and Russian Studies, with a minor in European History. She was awarded the Abbey McClosky ’92 Memorial Prize in International Relations, is a member of Phi Beta Kappa Society, and presented her Senior Honors Thesis at Harvard University’s Russian Studies Undergraduate Colloquium in the Spring of 2012.

Year Joined Firm


Areas of Practice

Labor & Employment Law
Business Law

Bar Admissions

State of New Hampshire


University of New Hampshire School of Law
J.D., cum laude – May 2021

Wheaton College | Norton, Massachusetts
Bachelor of Arts, magna cum laude  – 2012
Majors: International Relations, Russian Studies

News & Announcements

Honors & Awards

  • Rudman-Peterson Fellow.
  • Daniel Webster Scholar.
  • Massey Constitutional Law Award for 2019-2020.
  • CALI Excellence for the Future Award.
  • Legal Research and Information Literacy (Fall 2018) & Fundamentals of Lawyering. (Spring 2019)

Activities & Community Involvement

  • NH Women’s Bar Association – Membership Committee Member.
  • New Hampshire Public Radio – Community Advisory Board Member.
  • Senior Editor, UNH Law Review. (2020-2021)
  • DWS Pretrial Advocacy & DWS Dispute Resolution. (Fall 2020 & Spring 2021)
  • President, Student Bar Association (SBA). (2020 – 2021)
  • President, Women’s Law Student Association (WLSA). (2020 – 2021)
  • Volunteer, U.S. District Court of New Hampshire. (2018-2019)