Arnold Rosenblatt

One of the founding principals of the firm, Arnie Rosenblatt heads the firm’s business litigation practice. With forty years of experience as a trial lawyer, Arnie successfully handles business disputes in state and federal courts, in regulatory settings and in arbitration. His extensive experience spans trying a wide range of jury and non-jury trials to verdict, dozens of preliminary injunction hearings, involvement in multiple mediations and arbitrations as well as serving as a mediator and arbitrator. His notable cases include successful trying two of New Hampshire’s landmark trade secret cases, one on behalf of the prevailing plaintiff and one on behalf of the defendants, ultimately obtaining a defendant’s verdict.

Arnie’s experience covers a myriad of other business disputes, such as intellectual property matters other than trade secrets including trademarks, copyrights, and patents, non-competition agreements and matters related to employer-employee relationships, lender liability disputes, contract actions, and professional malpractice matters. As a result of Arnie’s reputation as a trial lawyer, he is a Fellow of the American College of Trial Lawyers, where he previously served as Chair for the State of New Hampshire.

Based on his ability to resolve all types of business disputes, Arnie is a sought-out mediator. He also serves as an arbitrator and is a member of the American Arbitration Association’s Panel of Commercial Arbitrators for Large Complex Cases and its Employment Panel and is on the panel of the International Institute for Conflict Prevention and Resolution (CPR).

Arnie is active in the business and legal communities and is a frequent speaker at seminars concerning business and intellectual property litigation.

Honors and Distinctions:

Fellow of the American College of Trial Lawyers AV (5.0 out of 5.0) Peer Review Rated

Chambers USA™: Band 1 for Litigation: General Commercial

Best Lawyers In America® in Bet-the-Company Litigation (2016 and 2018 “Lawyer of the Year” in Manchester); Commercial Litigation; Litigation – Banking; Litigation – Intellectual Property (2015 and 2017 “Lawyer of the Year” in Manchester); Litigation – Labor and Employment; Litigation – Patent; and Litigation – Securities, Banking and Finance (2019 and 2021 “Lawyer of the Year” in Manchester).

Super Lawyer in the area of Business Litigation

Top 100 Lawyers in New England Super Lawyers (2017-2020)


Columbia University (J.D., Harlan Fiske Stone Scholar)

Brown University (M.A.)

Swarthmore College (B.A., with distinction)

Professional Affiliations:

Admitted to New York bar

Admitted to New Hampshire bar

Admitted to Massachusetts bar

Admitted to Vermont Bar

New Hampshire Bar Association (Business Litigation Section chair, 1995-96, 1998-99; member of Continuing Legal Education Committee and Professionalism Committee)

American Bar Association

Member of American Arbitration Association Panel of Commercial Arbitrators

Member of Amherst, New Hampshire Planning Board (Chairman 2010-present)