 Livingston practiced law.His nephew, Francis Armstrong Livingston (1795–1830), lived with him in Rhinebeck, where Francis had a law office, and until Francis' wedding to Emma Charlotte Kissam in 1817.He was a member of the New York State Senate (Southern D.) from 1815 to 1822, sitting in the 39th, 40th, 41st, 42nd, 43rd, 44th and 45th New York State Legislatures.