Marsha is the co-founder and Chief Legal Officer of Juvenile Law Center, America's first public interest law firm for children. Marsha has spent her career advocating for youth in the justice and child welfare systems and has participated in numerous cases before the U.S. Supreme Court as well as federal and state courts nationwide. U.S. Supreme Court cases include Roper v. Simmons, Graham v. Florida, J.D.B. v. North Carolina, Miller v. Alabama, and Montgomery v. Louisiana. She also spearheaded Juvenile's Law Center's work in the Luzerne County, Pa. "Kids for Cash" judges' scandal, resulting in the vacatur of nearly 2500 juvenile adjudications and substantial financial awards to the youth and their parents. Marsha has received numerous awards for her work, including the Philadelphia Award (2015) and the Philadelphia Inquirer Citizen of the Year Award (2009 - co-winner), as well as recognition for her work from the American Bar Association, American Association for Justice, the Pennsylvania Bar Association and the Philadelphia Bar Association, among others. She is an adjunct professor at Temple University Beasley School of Law and the University of Pennsylvania Law School. Marsha is a Salzburg Global Fellow.