 After working as a schoolteacher for a period, he went to England to study law, eventually being called to the bar as a member of the Middle Temple.He entered the civil service on returning to Saint Kitts, and in June 1967 was made a Member of the Order of the British Empire (MBE) for his work.In August 1975, Inniss succeeded Sir Milton Allen as Governor of Saint Christopher-Nevis-Anguilla, an Associated State of the United Kingdom.