After graduating from Duke University School of Law, Professor Hubbard served as a law clerk to Judge Patricia M. Wald, United States Court of Appeals for the District of Columbia Circuit (1992-93). She worked primarily on reviewing administrative law decisions. As a law clerk to U.S. Supreme Court Justice Harry A. Blackmun (1993-94), Professor Hubbard reviewed and evaluated hundreds of petitions for certiorari and drafted memoranda and opinions on civil, criminal, and regulatory matters. As assistant to the United States Solicitor General (1996-97), she was involved in the federal government's Supreme Court litigation on varied topics. In addition to this service in the judicial and executive branches of government, she worked in both houses of Congress, including a stint as issues director and speechwriter for U.S. Senator Terry Sanford.
From 1997-2004, Professor Hubbard was an associate law professor at the University of North Carolina where she taught contracts, employment discrimination, disability law, and an upper-level writing class. In 2005, Professor Hubbard joined the faculty of law at the University of Cincinnati. Professor Hubbard has written and spoken extensively on disability law.