Following his graduation from law school, Robinson entered private practice in Anniston, becoming an associate attorney at the law firm of Bibb and Hemphill from 1953 to 1955, during which time he also served as the city recorder of Anniston, and sat as a judge for the Juvenile and Domestic Relations Court of Calhoun County, Alabama from 1954 to 1956.[2]
Robinson then entered into corporate practice for a number of companies. From 1956 to 1958, he was an attorney for the Gulf, Mobile & Ohio Railroad Co., in Mobile, Alabama.[1] He then served as commerce counsel and assistant general attorney for the Seaboard Airline Railroad Co. in Richmond, Virginia from 1958 to 1966, as chief commerce counsel for Monsanto Co. in St. Louis, Missouri from 1966 to 1970, and became general counsel for Marion Laboratories, Inc., in Kansas City, Missouri in 1970. In 1972, he also became a vice president of that company, holding that position until 1980, when he became president of the Gulf and Great Plains Legal Foundation in Kansas City, until 1985. He briefly returned to private practice in Kansas City from 1985 to 1986, but became vice president and general counsel to S.R. Financial Group, Inc., in Overland Park, Kansas, from 1986 to 1987.[1]