 She was also law clerk to U.S. Supreme Court Justice Thurgood Marshall and Judge Abner Mikva of the U.S. Court of Appeals for the District of Columbia Circuit.Sheryll Cashin also worked as an Associate Counsel for the Office of Transition Counsel and as an associate at Sirote & Permutt, P.C.As a Professor of Law at Georgetown University, Sheryll Cashin teaches Constitutional Law, Local Government Law, Property, Administrative Law, and Race and American Law.