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  • Bowdoin College , A.B., 2007
  • Suffolk University Law School , J.D., 2010


Massachusetts; Maine; New Hampshire; U.S. District Court for the District of Massachusetts; U.S. District Court for the District of Maine; U.S. District Court for the District of New Hampshire

Daniel Sonneborn

Daniel R. Sonneborn

Practice Focus: Litigation
Office: Boston, MA
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Daniel R. Sonneborn is an Associate in the firm's Litigation Group, practicing from the Boston office. In his work as a trial attorney, he assists clients with a wide range of matters including business and commercial litigation and professional liability.

Prior to joining Preti Flaherty in 2013, Daniel litigated medical malpractice, health and insurance matters at law firms in Maine and Massachusetts. In law school he served as the Managing Editor of the Journal of Health and Biomedical Law and clerked for the legal department of a large, national insurance company.

Daniel is a graduate of Bowdoin College and of Suffolk University School of Law. He lives in Medford, Massachusetts.

Professional Affiliation

  • Maine State Bar Association
  • New Hampshire Bar Association
  • Defense Research Institute
  • American Health Lawyer's Association

Charitable Involvement

  • Pan-Mass Challenge
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