Marc E. Chapdelaine

Marc E. Chapdelaine is a trusted Massachusetts trial attorney serving Winthrop, Boston, and communities across the North Shore for more than twenty years. He represents clients in civil litigation, criminal defense, personal injury and catastrophic injury cases, fiduciary and probate litigation, and estate planning, providing steady, experienced guidance during difficult and often life‑changing situations.

A lifelong Massachusetts resident, Attorney Chapdelaine earned his J.D. from the Syracuse University College of Law and has practiced in Massachusetts state courts since 2002. He is also admitted to the U.S. District Court for the District of Massachusetts, allowing him to advocate for clients in both state and federal matters. Clients rely on him for his practical approach, attention to detail, and commitment to clear, honest communication.

In 2023, Attorney Chapdelaine partnered with longtime colleague Tim Ryan to form Chapdelaine, Ryan & Associates, expanding upon the law practice he originally founded in 2006. The firm represents individuals, families, and small businesses throughout Winthrop, East Boston, Revere, Lynn, Saugus, Lynnfield, Salem, Chelsea, Swampscott, and the greater North Shore. Their work is grounded in thorough preparation, strategic thinking, and genuine respect for the people they serve.

With extensive trial experience in both civil and criminal courts, Attorney Chapdelaine provides calm, focused leadership in high‑stakes and emotionally complex cases. Whether advocating for an injured client, guiding a family through a contested probate matter, or defending someone facing criminal charges, he works to protect his clients’ interests and help them move forward with confidence.

Attorney Chapdelaine is also recognized for his contributions to the Massachusetts legal community. He serves on the Executive Board of the Greater Lynn Bar Association and the Board of Directors of the Essex County Bar Association. He is a Fellow of the Litigation Counsel of America, an honor extended to less than 0.5% of American trial attorneys, and a Fellow of the Massachusetts Bar Foundation, which supports access to justice across the Commonwealth.

Attorney Chapdelaine’s professional excellence has been widely recognized. He holds the AV Preeminent Rating from Martindale‑Hubbell—its highest distinction for legal ability and ethical conduct—and has received the Platinum Client Champion Award every year since 2017. He has also been named a New England Super Lawyer each year since 2014, maintains a 10/10 AVVO rating, and has been selected by Boston Magazine as a Top Lawyer in Civil Litigation.

Beyond his legal practice, Attorney Chapdelaine is active in community service. For more than eighteen years, he has been a member of the Saugus Lions Club, receiving the Melvin Jones Fellowship in recognition of exceptional humanitarian work. He also serves the Town of Winthrop through local government, including his appointment to the Winthrop Zoning Board of Appeals in 2023.

Attorney Chapdelaine lives in Winthrop, Massachusetts with his wife and three children. His approach to the practice of law is steady and principled: treat people with respect, prepare thoroughly, act with integrity, and advocate consistently for each client’s best interests.