Michael Duggan is Of Counsel with Marks, O’Neill, O’Brien, Doherty & Kelly’s Delaware office.  He is admitted to practice in Delaware, The U.S. District Court of the District of Delaware and the U.S. Court of Appeals for the Third Circuit.  He is also a member of the Delaware Bar Association.

Mike graduated from the University of Delaware in 1981, with a bachelor of science in Mechanical Engineering.  Later, he attended The Delaware Law School at Widener University, graduating in 1993 magna cum laude.  During law school, Mike was awarded the American Jurisprudence Awards in Torts and Civil Procedure and a book prize in trust drafting and planning.  While in the night program at law school, Michael continued to work as manager of a special accounting unit at Wilmington Trust Company.  There, he was charged with periodic valuation of collateral as Trustee for a substantial book of asset backed securities, while also acting as an internal analyst for technology and business practices.  He also took on a part-time clerkship at a small law firm to add real litigation knowledge to his more formal education. Mike’s experience as a lawyer includes trial work in all courts in Delaware, while working at several firms, and even for a short time in solo practice.

Since joining Marks O’Neill in 2010, Michael has represented clients in litigation of a variety of topic areas, but especially personal injury; from premises liability, through products liability, and including wrongful death.  His practice involves significant work in bankruptcy matters for large corporations, as well as direct representation of insurance companies. Mike has extensive experience in professional liability matters and has maintained this topic area throughout his career.

Michael enjoys the informal study of history, including military history, is an avid reader of classic science fiction and tries to keep up with developments in science and technology.

Michael F. Duggan
Of Counsel / Delaware

Phone 302-351-2925
Email mduggan@moodklaw.com

Michael F. Duggan PDF


  • J.D., Widener University School of Law, magna cum laude, 1993
  • B.S., University of Delaware, 1981

Bar Admissions

  • Delaware, 1994
  • U.S. District Court of the District of Delaware, 1994
  • U.S. Court of Appeals for the Third Circuit, 2010

Bar Associations

  • Delaware Bar Association

Practice Areas

  • Bankruptcy, Appellate Advocacy, Post-Trial Practice
  • Professional Liability
  • Toxic Tort, Mass Tort, Environmental and Products Liability
  • Transportation/Trucking

Representative Cases



300 Delaware Avenue, Suite 900, Wilmington, DE 19801