Green had relocated to Manly in Sydney during the 1920s, and after leaving politics studied law at the University of Sydney; enrolling at 53, he was claimed at the time to have been the oldest student in the history of the Sydney Law School. He was subsequently admitted to the bar in March 1942 and worked as a barrister until ill health caused him to cease practice in June 1946. He made three attempts at re-entering politics, as a Country Party candidate at the 1938 state election, an abortive Country Party Senate preselection bid at the 1943 federal election and unsuccessful Liberal preselection attempt at the a resulting by-election. He died at the Prince of Wales Hospital in Sydney in April 1947 at the age of 61.