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Associate Daniel P. Hagelberg focuses his practice on general liability defense and professional liability defense. He defends professionals and management, in particular breach of fiduciary duty claims against directors and officers, legal actions against business entities, and malpractice claims against professionals.

In his general liability defense work, Mr. Hagelberg defends against property damage claims, construction defects, and premises liability claims involving commercial and residential properties. He has significant experience in complex litigation and healthcare professional liability matters. Mr. Hagelberg also handles transactional matters including contract drafting and entity formation.

Before becoming an attorney, Mr. Hagelberg worked as a legislative aid and coached rowing for both the Men’s and Women’s teams at the University of Delaware, Washington College, and St. Mary’s College of Maryland.


  • Delaware
  • Maryland
  • Washington, D.C.
  • U.S. District Court
    • District of Delaware


  • Widener University School of Law – J.D.
  • University of Delaware – B.A.

Professional Memberships

  • American Bar Association
  • Delaware State Bar Association
  • Maryland State Bar Association

Awards & Honors

No aspect of the advertisement has been approved by the Supreme Court. Learn more about the selection methodology of awards and honors.

Mansfield Rule Certified 2023 Super Lawyers Super Lawyers Best Law Firms 2023 Best Law Firms 2024 Martindale Hubbel AV Preeminent Law 360