Finch was born at the London house of his maternal grandfather at around 8 am on 22 Nov. 1579. Baptized six days later, his godparents were John, Lord Russell, William, 10th Lord Brooke (William Brooke alias Cobham†) and Anne, Lady Dacres.
Finch may have owed his marriage to his cousin, Thomas Heneage*. A family settlement drawn up in 1622 assured his two sons of an annual income of £150. He was returned for Winchelsea in 1624 on the family interest, but only through the gross partiality of the mayor; and his election was declared void on the petition of his opponent Sir Alexander Temple*. He was re-elected a week later, when three of the voters apparently changed sides, and he went on to survive another petition from Temple. Through his brother Heneage he obtained permission to resume his seat without receiving communion again; but he took no known part in the proceedings of the House. On his resignation as deputy recorder in November 1624 the City gave him £100 in recognition of his services. He drew up his will on 20 Aug. 1630, when he described himself as ‘being in perfect health’. He nominated as his executors his nephew Thomas Twisden† and his wife’s brother-in-law, Richard Lane of the Middle Temple. His will was published on 21 Sept. and proved on 25 Sept. by his two surviving brothers. His elder son, John, represented Winchelsea in the Short and Long Parliaments.
