Margaret S. Costello

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Margaret S. Costello


Tel (215) 575-4354

Fax (215) 563-2583


Margaret S. Costello is an associate in the Philadelphia office of Rawle & Henderson LLP. She concentrates her practice on casualty & premises liability matters. Margaret earned her J.D. from the Drexel University Thomas R. Kline School of Law in 2015. While at Drexel, she was an active participant in Drexel’s Community Lawyering Clinic, where she provided legal aid to community members, focusing on issues of homeownership stability and foreclosure prevention.

Margaret has also earned a Master of Science degree in Social Policy from the University of Pennsylvania, and a Bachelor of Arts in History, summa cum laude, from Villanova University. Margaret is a member of the Philadelphia Bar Association’s Women in the Profession Committee, and also serves as a nonprofit Board Observer for Dignity Housing. She is admitted to practice in Pennsylvania and New Jersey.

Practice Areas

Bar Admissions

  • Pennsylvania
  • New Jersey


Drexel University Thomas R. Kline School of Law, J.D. 2015
  Teaching Assistant, Drexel University Thomas R. Kline School of Law, January 2015 – May 2015 
  Pro Bono Intern, Drexel University Community Lawyering Clinic, September 2014 – April 2015
  Legal Intern, City of Philadelphia, August 2014 – December 2014

University of Pennsylvania, Master of Science (M.S.), Social Policy, magna cum laude, 2011

Villanova University. B.A., History, summa cum laude, 2009
  Blue Key Society, Orientation Steering Committee, Habitat for Humanity trip leader

Professional Associations

Member, Philadelphia Bar Association Women in the Profession Committee
Nonprofit Board Observer for Dignity Housing

Seminars, Speeches & Publications