Mark Heptinstall

Marrielle B. Van Rossum is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law and Medical Malpractice Law - Defendants. Marrielle B., who practices law in Manchester, New Hampshire, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marrielle B. is held by other top lawyers in the same geographic and legal practice area.

Jamie N. Hage has over thirty years of business and civil litigation experience. He has litigated cases in both federal and state courts, with a focus on complex business and commercial disputes, intellectual property matters, and personal injury and professional negligence. Mr. Hage also serves as general outside counsel for many of his corporate clients. He represents small, mid-size, and publicly traded companies as well as individual and other private clients in a broad range of areas inc...

Ned takes and wins tough cases. As a litigator and a trusted advisor, Ned has guided his clients through their most complicated and difficult problems. He has won at trial. He has gotten cases dismissed on the papers. He has pierced the corporate veil to collect debts. And, he has made new law at the New Hampshire Supreme Court in order to protect his clients. Ned’s areas of expertise include: Trademark, copyright, and trade secret litigation Ned has litigated “soft IP” disp...

Eric T. Kilchenstein is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Transactions / UCC Law. Eric T., who practices law in Portsmouth, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eric T. is held by other top lawyers in the same geographic and legal practice area.

Sean O'Connell is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Personal Injury Litigation - Plaintiffs. Sean, who practices law in Dover, New Hampshire, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sean is held by other top lawyers in the same geographic and legal practice area.

Attorney Quinn was born in Hanover, New Hampshire. He earned a Bachelor of Arts from St. Lawrence University in Canton, New York. Following graduation, he was employed as a Legislative Assistant in the United States House of Representatives with Congresswoman Nancy Pelosi. He later attended Vermont Law School where he graduated with a Juris Doctor in 1993. Attorney Quinn began practicing law at a firm in North Conway, New Hampshire until 1993 when he joined Brennan Lenehan. In 2004, he became...

J. Daniel Marr is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Corporate Law. J. Daniel, who practices law in Nashua, New Hampshire, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J. Daniel is held by other top lawyers in the same geographic and legal practice area.

Mark W. Dean is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law, Energy Regulatory Law and Utilities Law. Mark W., who practices law in Manchester, New Hampshire, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark W. is held by other top lawyers in the same geographic and legal practice area.

Katherine Battles is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Katherine, who practices law in Manchester, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine is held by other top lawyers in the same geographic and legal practice area.

Brad is head of the firm’s Estate Planning and Probate, Government Relations and Not-for-Profit, Charitable and Religious Institutions Practice Groups. He is a past President of the firm and has practiced with Sheehan Phinney since 1973. Brad represents many colleges and schools, religious organizations throughout New England, and hospital, nursing home and other charitable and other not-for-profit clients, and practices general corporate law. He writes a regular column, “Cook on ...