Member firm Macfarlane, Ferguson, Allison & Kelly, Tampa, 1958-1971. Instructor business law University South Florida, 1961-1966. Judge United States District Court (middle district) Florida, 1971—1982, 1989—1999, chief judge, 1982—1989, senior judge, since 1999.
Member committee on operations jury system Judicial Conference, 1982-1987, circuit council, 11th circuit, 1981-1986. Member, advisory committee on criminal rules procedure and evidence Judicial Conference, 1987-1993, chairman, 1990-1993. Ad hoc committee on habeas corpus reform.
Chairman, bench book committee Federal Judicial Center, 1987-1993. Chairman, Ad Hoc Committee of the Judicial Conference to study relations within the Federal Judicial Center, 1997-1998. Chairman, United States Judicial Panel on Multidistrict Litig., 2000-2007.
Member American, Tampa-Hillsborough County bar associations, Florida Bar (chairman grievance committee 1967-1970, chairman uniform commercial code committee 1970-1971), District Judges Association 5th Circuit (co-chairman committee on pattern jury instruction 1977-1981), District Judges Association 11th Circuit (chairman jury instructions committee since 1982, president 1981-1982) American Judicature Society.