Richard Hart practices as a Solicitor in his native Jamaica from 1941 to 1963. He served on the executive of the People's National Party of which he was a founding member in 1938 and was active in the Trade Union movement.

After editing a newspaper in Guyana in 1964 he came to England in 1965 and worked as a Solicitor to a local authority.

In 1982 he went to Grenada as Legal Adviser to the Revolutionary Government, becoming a Civil Service Attorney General in 1983.

Following the American invasion he returned to England. He is the author of several books on Caribbean history.