Miller returns to GPO as deputy general counsel. Miller is responsible for supervising the activities of all professional and administrative employees of the Office of General Counsel, rendering legal advice and counsel on questions and interpretations of laws, regulations and administrative policies affecting the GPO, and serving as the agency's Ethics Officer. Miller started his legal career at GPO in 1980 where, holding various positions until leaving the agency in 2006 for the Federal Transit Administration where he served as assistant chief counsel for general law. During his time at GPO, Miller primarily served as GPO's senior procurement law attorney where he provided advice to agency officials on contract formation and contract administration issues, represented the agency in contract appeals before the GPO Board of Contract Appeals, defended Government Accountability Office bid protests, and coordinated all administrative suspensions, debarments, and affirmative litigation involving GPO contractors. He also served as a Board of Contract Appeals judge and was the GPO's first Chief Acquisition Officer. Miller earned his law degree from Catholic University and his undergraduate degree from George Mason University.