Mark E. Defossez

Mark E. Defossez is a veteran trial lawyer with over 24 years of litigation experience. He represents clients in complex personal injury cases involving medical malpractice, industrial accidents, product liability, and motor vehicle collisions. His focus is on securing justice and compensation for those suffering serious injuries or wrongful death due to negligence or unsafe conditions.

Mark earned his Juris Doctor from Boston College Law School and holds a Bachelor of Science from Northwestern University. He is admitted to practice law in both Ohio and Massachusetts. His academic foundation and courtroom skills have contributed to a career marked by landmark jury verdicts and a strong commitment to client advocacy.

Throughout his distinguished career, Mark has secured substantial results for clients, including some of Ohio’s largest civil jury verdicts. His $8.5 million verdict for a worker injured in a workplace accident remains one of the highest in Franklin County. Mark has achieved top jury verdicts in Franklin (2000, 2001), Licking (1998), and Gallia (2008) Counties, reinforcing his reputation as a formidable presence in the courtroom.

Mark handles a wide range of serious injury and wrongful death cases, including nursing home abuse and neglect, toxic exposure and toxic torts, aviation accidents, and complex insurance disputes. He is an active member of leading legal organizations such as the Ohio State Bar Association, the American Association for Justice, and the Ohio Academy of Trial Lawyers. Named an Ohio Super Lawyer in 2013, Mark remains a trusted, respected advocate and a leading voice in Ohio’s personal injury and trial law community.

At the heart of Mark E. Defossez’s practice is an unwavering dedication to protecting injury victims and holding wrongdoers accountable. His record of success and reputation for excellence make him a trusted advocate for individuals and families facing life-altering harm.

Law Office Affiliations

• Attorney, Donahey Law Firm
• Member, Columbus Bar Association
• Member, Ohio State Bar Association
• Member, Franklin County Trial Lawyers Association
• Member, Ohio Academy of Trial Lawyers
• Member, American Association for Justice

Licensed State

• Massachusetts
• Ohio

Education

• Boston College Law School
  Juris Doctor (JD)
• Northwestern University
  Bachelor of Science (BS)

Awards & Badges