In 1707 he was drafted by the Suffolk Tories to replace the Earl of Dysart as the Member of Parliament for Suffolk. He is not recorded as having made any contributions in parliament. He was classed as a Tory in two lists of 1708, but did not stand at the general election of that year, nor subsequently.[1]
Martin died on 11 October 1732. His only daughter and heiress married Price Devereux, 10th Viscount Hereford and so returned Christchurch to the Devereux family.[1]