Hull was a law clerk to Judge Elbert P. Tuttle of the United States Court of Appeals for the Fifth Circuit from 1973 to 1974. She was an associate attorney with the law firm Powell, Goldstein, Frazer & Murphy, in Atlanta, Georgia from 1974 to 1980 and a partner there from 1980 to 1984. She served as a Judge for the State Court of Fulton County, Georgia from 1984 to 1990, as a Judge for the Superior Court of Fulton County, Georgia from 1990 to 1994.