Todd Sullivan

Mark represents individuals and their claims and disputes relative to bodily injury claims, workers’ compensation claims, insurance coverage disputes, and social security disability claims. Mark’s experience in bodily injury claims includes motor vehicle accidents, general tort claims, product’s liability claims and medical malpractice claims.

A founding shareholder of the firm, Michael leads the Litigation Practice Group, specializing in business and commercial litigation matters, defense of medical malpractice actions, and advising medical doctors and practices in a variety of legal matters. He is an accomplished trial lawyer in New Hampshire and Massachusetts state and Federal courts, and brings extensive experience to the investigation, evaluation, settlement or trial of major cases. Michael is a skilled litigator, effective ne...

Mark Beaudoin represents developers, landowners and investors in all aspects of commercial real estate transactions, including land use and environmental permitting. My focus My practice focuses on assisting clients with the acquisition, financing, permitting, leasing and disposition of commercial real estate. The industries with which I work vary from commercial real estate developers and health care facilities to energy providers and telecommunication companies. ACQUISITION, FINANCING AND D...

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...

James Callahan is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law, Business Organizations (including LLCs and Partnerships) and Real Estate Law. James, who practices law in Peterborough, New Hampshire, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James is held by other top lawyers in the same geographic and legal practice area.

For over 40 years, Jerry Zelin has devoted his practice to representing New Hampshire school districts in a wide array of student-related matters including special education, inter-district residency disputes, juvenile court cases, pupil discipline, civil rights, the federal Family Educational Rights and Privacy Act (FERPA), and limits on the state and federal governments’ authority to regulate local school districts. Jerry has successfully represented school districts in some of New Ha...

Kierstan Schultz is a litigator and a member of Nixon Peabody’s Complex Commercial Disputes practice group. She represents health care providers, businesses and individuals, and manages discovery, motion practice and trials for complex commercial litigation matters. What do you focus on? I represent clients in a variety of industries in all aspects of the adversarial process, in civil litigation in state and federal courts. Health Care Litigation My health care litigation practice focus...

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.

Charles R. Powell III is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law, Commercial Litigation, Health Care Law and Litigation - Health Care. Charles R., 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 Charles R. is held by other top lawyers in the same geographic and l...

Russell F. Hilliard is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Insurance Law, Litigation - Insurance and Mediation. Russell F., who practices law in Portsmouth, New Hampshire, has been recognized since 1997. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Russell F. is held by other top lawyers in the same geographic and legal practice area.