After service in the American war Finch settled as a gentleman farmer in Surrey, where he purchased Albury from his brother the 4th Earl.
Finch made no mark in the House. In April 1791 he was listed hostile to the repeal of the Test Act in Scotland. Three brief speeches, one attributed to ‘Mr’ and two to ‘the Hon. Capt. Finch’ in 1792 may be his.
