Robert M. Derosier

Robert M. Derosier is a partner at Donahue, Tucker & Ciandella, PLLC, whose practice covers appellate advocacy, insurance, employment law, municipal law, estate planning, litigation, energy, utilities, and telecommunications. He represents clients who need clear legal analysis, practical case strategy, and steady guidance through disputes or planning needs. His work includes helping public bodies, businesses, insurers, and individuals understand their options, protect their interests, and respond to legal challenges with careful preparation.

Robert earned his B.A. from McGill University. He earned his J.D., with honors, from the University of Connecticut. He also earned his LL.M. from Queen’s University. These degrees support his ability to research difficult issues, write strong legal arguments, and explain complex legal matters in plain language for clients who need sound direction before making decisions.

Robert was admitted to the Connecticut bar in 1987 and the New Hampshire bar in 1993. He is also admitted to the US Federal District Court Bar and the US Court of Appeals for the First Circuit. His past admission in Nova Scotia adds to his broad professional background. As a member of the New Hampshire Bar Association, he brings long experience to matters involving appeals, employment disputes, insurance issues, municipal questions, and estate planning concerns.

Robert helps clients by focusing on preparation, communication, and practical results. In appellate work, he develops arguments that address the record and the law. In municipal and employment matters, he helps clients manage duties, risks, and disputes. In estate planning, he helps clients organize future needs with clear documents. 

Robert M. Derosier has a professional approach that gives clients a steady legal resource when decisions carry lasting consequences for their rights, organizations, or families. Clients benefit from his ability to connect legal rules with real goals, whether the matter involves a court filing, public decision, policy concern, trust issue, or long-term plan. He supports each matter with disciplined review, clear writing, and respect for the client’s priorities.

Law Office Affiliations

• Partner, DTC Lawyers
• Member, New Hampshire Bar Association
• Member, Connecticut Bar Association
• Former Member, Exeter School Board
• Former Member of the Bar of the Province of Nova Scotia, Canada

Licensed State

• New Hampshire
• Connecticut

Education

• Queen’s University
  LL.M
• University of Connecticut
  Juris Doctor (JD)
• McGill University
  Bachelor of Arts

Awards & Badges