About
Peter Callahan, Esq., is a lawyer who handles personal injury, motor vehicle accident, discrimination, workers’ compensation, and divorce matters. He has been affiliated with Dixon and Associates since 1992 and works with clients in both Massachusetts and New Hampshire. His practice includes court appearances and administrative agency proceedings. He helps clients understand legal procedures, prepare claims, and address disputes that may affect their health, employment, family, or financial stability and rights.
Callahan earned his B.A. in Political Science from St. Michael’s College in Winooski, Vermont. He earned his Master’s Degree in International Relations from Boston College. He also earned his J.D. from Franklin Pierce Law Center in New Hampshire. His academic background supports a practice that requires careful research, clear communication, and strong case organization across injury, employment, compensation, and family law matters.
Callahan is licensed to practice law in Massachusetts and New Hampshire. His legal career includes work before the New Hampshire Department of Labor, the New Hampshire Commission for Human Rights, and the Massachusetts Department of Industrial Accidents. He has also appeared in New Hampshire Superior and District Courts. This experience helps him handle claims involving workplace injuries, discrimination complaints, accident disputes, and divorce concerns with court-readiness and preparation.
Peter Callahan helps people by guiding them through claims and court processes that can feel difficult to manage alone. In injury and accident cases, he works to address losses caused by harm. In workers’ compensation and discrimination matters, he helps clients pursue legal protections. In divorce cases, he assists with important family decisions. His work focuses on practical advice, preparation, and steady representation in challenging legal disputes and claims.
Law Office Affiliations
- Attorney, Dixon & Associates Law Firm
- Member, Massachusetts Bar Association
- Member, New Hampshire Bar Association
Licensed State
- Massachusetts
- New Hampshire
Education
- Franklin Pierce Law Center
Juris Doctor (JD) - Boston College
Master’s Degree in International Relations - St. Michael’s College
B.A. in Political Science
Awards & Badges


- Animal & Dog Bites
- Car Accidents
- Medical Malpractice
- Motorcycle Accidents
- Products Liability
- Slip & Fall Accidents
- Trucking Accidents
- Discrimination
- Workers' Compensation
- Divorce & Separation




