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Mahan_Kathleen

Kathleen M. Mahan

Partner Manchester

Kathleen Mahan is a Partner at Hinckley Allen and a business litigator known for her success as an advisor and advocate for her clients. She counsels both plaintiffs and defendants, representing them in complex business matters involving organizational restructuring and corporate governance, non-compete conflicts, contracting, trade secret protections, and protracted property disputes. Kate’s knowledge, influence, and powers of persuasion help clients to avoid dire circumstances and in some cases, costly legal ramifications. She is considered a leader in a wide range of intellectual property matters and was a key attorney in one of New Hampshire’s precedent-setting trade secret cases.

Kate regularly handles appeals before the New Hampshire Supreme Court, represents clients before the New Hampshire Business and Commercial Dispute Court, state and federal courts, arbitration proceedings, and is Rule 32 certified with the New Hampshire Superior Court for all New Hampshire counties. She currently is president-elect of the New Hampshire Bar Association and is in line to become the first woman in a decade to serve as its president.

In her role as president-elect, Kate sits on the Board of Directors for the New Hampshire Bar Association as well as a number of its statewide committees. Separately, she was appointed to the Federal Court Advisory Committee for the District of New Hampshire and is a long time member of the New Hampshire Bar Association’s Committee on Cooperation with the Courts. Kate also is a member of the New Hampshire Supreme Court Society. Kate represents clients in the United States District Court of New Hampshire, the United States District Court of Massachusetts, the Commonwealth of Massachusetts, and the State of New Hampshire.

Kate is one of the preeminent lawyers in New England with groundbreaking accomplishments that pave the way for women in law. She is ranked as one of Chambers USA America’s Leading Lawyers for the category of Litigation: General Commercial and has been named Best Lawyers in America for Commercial Litigation, Litigation – Intellectual Property, and Trade Secrets Law, as well as Super Lawyers, New Hampshire and Super Lawyers Rising Stars.

Experience

  • Vention Medical
  • GTI Spindle Technology
  • Short v. LaPlante
  • Business and Commercial Dispute Docket

Credentials

Work Experience

  • Hinckley Allen
    • Partner (2022-Present)
  • Cook, Little, Rosenblatt & Manson
    • Member (2018-2022)
    • Associate (2009-2018)
  • The Hon. Richard Galway, New Hampshire Supreme Court
    • Law Clerk (2007-2009)
  • New Hampshire Superior Court
    • Law Clerk (2005-2007)

Honors & Awards

  • Best Lawyers in America® (2021-2024)
    • Commercial Litigation
    • Litigation – Intellectual Property
    • Trade Secrets Law
  • Super Lawyers, New Hampshire
    • Super Lawyers (2021-2023)
    • Rising Stars (2018-2019)
  • Chambers USA America's Leading Lawyers for the category of Litigation: General Commercial

Charitable & Civic Involvement

  • New Hampshire Bar Foundation
    • Board of Directors – Director (2018-present)
  • Leadership Greater Manchester (2018)
  • Saint Anselm College Alumni Council, President

Professional Affiliations

  • American Bar Association
  • Daniel Webster Batchelder, American Inns of Court (2010-present)
  • New Hampshire Bar Association
    • President-Elect (2023-Present)
    • Vice President (2022-Present)
    • Committee on Cooperation with the Courts (2016-Present)
    • Board of Governors – Governor at Large (2019-2022)
    • Leadership Academy (2015)
  • New Hampshire Women’s Bar Association
  • New Hampshire Young Lawyer Delegate to the American Bar Association, House of Delegates (2016-2018)
  • Massachusetts Bar Association
  • United States District Court for the District of New Hampshire
    • Federal Court Advisory Committee (2019-present)

Bar Memberships

  • New Hampshire
  • Massachusetts
  • United States Court of Appeals for the First Circuit
  • United States District Court for the District of New Hampshire
  • United States District Court for the District of Massachusetts

Newsroom

Publication

Openness and Informal Dialogue at the Core of the Bench Bar Relationship

This article was featured in the January/February 2023 edition of The Bencher.I have heard it said that the bench and the bar are the two essential cogs within the “machine” that is our legal system. Each cog has its own role, responsibilities, and eve…

Publication

Straight to the Point: A Conversation with Kathleen M. Mahan

Kathleen M. Mahan is a business litigator specializing in complex commercial disputes. Kate works closely with her clients to resolve matters pertaining to contract, intellectual property, and other professional disagreements, and, when necessary, pursue e…

Firm News

57 Hinckley Allen Lawyers Included in 2023 Super Lawyers and Rising Stars Lists

A total of 57 Hinckley Allen attorneys were named to the Super Lawyers® and Rising Stars lists in Connecticut, Massachusetts, New Hampshire, Rhode Island, and Upstate New York for 2023, including those newly recognized as well as featured in Top Lists.Ger…

Firm News

Hinckley Allen Attorneys Named in Best Lawyers in America® 2024

A multitude of Hinckley Allen attorneys are recognized in their respective practice areas in Best Lawyers® 2024 edition of The Best Lawyers in America®. In addition, 11 Hinckley Allen attorneys were named in the “Lawyers of the Year” category, as wel…

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Events

Past Event

Liability for Officers, Directors & Owners of Limited Liability Companies & Closely-Held Corporations

June 21, 2023

Partners Arnold Rosenblatt and Kathleen M. Mahan will be participating in an in-person CLE with simultaneous webcast hosted by the New Hampshire Bar Association addressing the legal exposure for individuals in a corporate and limited liability company sett…