Katie A. Mosher joined DTC as an associate in September 2025. Katie is primarily a litigator working on behalf of clients in issues of professional liability and malpractice, professional discipline and licensing, municipal law, land use and permitting, and various other civil litigation concerns. She is also excited to grow her practice in estate planning and telecommunications law at DTC.

Katie is a New Hampshire native and has lived in the greater Concord area for most of her life. She graduated cum laude from the University of New Hampshire School of Law in 2021, and earned her Bachelor of Arts, magna cum laude, in International Relations and Russian studies, with a minor in European History, from Wheaton College in Norton, Massachusetts in 2012.

Prior to law school, Katie worked for Concord’s only independent movie theater, Red River Theatres, and spent ten months traveling the country and serving communities impacted by disaster as a Corps Member in the AmeriCorps NCCC – FEMA Corps program.

At UNH Law, Katie was Daniel Webster Scholar, a Rudman-Peterson Fellow, and a Senior Editor for the UNH Law Review.  She also served as a Teaching Assistant for both the Daniel Webster Scholar Honors’ Pretrial Advocacy course, and the Daniel Webster Scholar Honors’ Dispute Resolution course. As a 3L, Katie was elected as the President of the Student Bar Association, and she also served as the President of the Women’s Law Student Association.

In addition to her practice, Katie is very involved in her community, including as: a Board member of Pope Memorial SPCA of Concord, Merrimack County; a Board member of the New Hampshire Women’s Bar Association, where she is Chair of the Networking Committee; Board member of the Daniel Webster-Batchelder American Inns of Court, serving as one of the Membership Chairs; a member of the New Hampshire Bar Association’s Ethics and IOLTA Grants Committees; a member of the Association of Professional Responsibility Lawyers; and a member of Federal Communications Bar Association. Katie has given presentations on practical ethics to new admittees to the New Hampshire Bar Association since 2022 and was a 2023 graduate of the Leadership Greater Concord program.

Katie is admitted to practice in New Hampshire and the U.S. District of New Hampshire.