Megan T. Mantzavinos is a Partner with Marks, O’Neill, O’Brien, Doherty & Kelly, and serves as the Managing Partner of the Maryland office. She is admitted to practice in Delaware and Maryland. Megan is also a member of the Delaware Bar Association and served as a past Chair of its Women and Law Section.

Megan graduated from the University of Delaware in 1993, with a Bachelor of Arts in Philosophy. Later, she attended Widener University School of Law as an Evening Division student, graduating in 1998. During law school, she worked full-time as a paralegal in the Delaware office of a Philadelphia-based insurance defense firm.

Since joining Marks O’Neill in 1999, Megan has focused her practice on employment and local government matters, including civil rights and land use litigation, as well as appellate advocacy. She has extensive experience in litigating cases in both the Maryland and Delaware courts and has argued before the United States Court of Appeals for the Third Circuit, the Delaware Supreme Court, the Maryland Court of Appeals and the Maryland Court of Special Appeals.

Megan is a recent empty nester who enjoys hiking, container gardening, vegetarian cooking, and trying to teach basic manners to Riley, her rescue hound.

Andrews & Lawrence Professional Services, LLC v. Mills, 463 Md. 523 (2019)

Mills v. Galyn Manor Homeowner’s Association, 239 Md. App. 663 (2018)

E&R Enterprises, LLC v. City of Rehoboth Beach, 650 Fed. Appx. 811 (3d Cir. 2016)

Murphy v. City of Lewes, 614 Fed. Appx. 93 (3d Cir. 2015)

Fruchtman v. Town of Dewey Beach, 60 F. Supp. 3d 556 (D. Del. 2014)

 Murray v. Town of Dewey Beach, 67 A.3d 388 (Del. Supr. 2013)

Megan T. Mantzavinos
Partner

Phone 667-206-5302
Email MMantzavinos@moodklaw.com

Megan T. Mantzavinos PDF

Education

  • J.D., Widener University School of Law, 1998
  • B.A., University of Delaware, 1993

Bar Admissions

  • Delaware, 1999
  • U.S. District Court for the District of Delaware, 2000
  • U.S. Court of Appeals for the Third Circuit, 2003
  • Maryland, 2005
  • U.S. District Court for the District of Maryland, 2005
  • U.S. Court of Appeals for the Fourth Circuit, 2005

Bar Associations

  • American Bar Association
  • Delaware Bar Association, Women and the Law Section
  • Maryland Bar Association

Practice Areas

  • Bankruptcy, Appellate Advocacy, Post-Trial Practice
  • Employment Law, Municipal & Public Entity
  • Professional Liability
  • Toxic Tort, Mass Tort, Environmental and Products Liability

Representative Cases

Andrews & Lawrence Professional Services, LLC v. Mills, 463 Md. 523 (2019)

Mills v. Galyn Manor Homeowner’s Association, 239 Md. App. 663 (2018)

E&R Enterprises, LLC v. City of Rehoboth Beach, 650 Fed. Appx. 811 (3d Cir. 2016)

Murphy v. City of Lewes, 614 Fed. Appx. 93 (3d Cir. 2015)

Fruchtman v. Town of Dewey Beach, 60 F. Supp. 3d 556 (D. Del. 2014)

 Murray v. Town of Dewey Beach, 67 A.3d 388 (Del. Supr. 2013)

Publications