He was an attorney and real estate consultant for the City of Cleveland Law Department from 1944 to 1950.
He was special master for the Court of Common Pleas in Cuyahoga County, Ohio from 1959 to 1961.
[2] Green received a recess appointment from President John F. Kennedy on October 5, 1961, to the United States District Court for the Northern District of Ohio, to a new seat created by 75 Stat.
He was confirmed by the United States Senate on June 29, 1962, and received his commission on July 2, 1962.
[1] In 2003, the Case Western Reserve Law Library was named in Green's honor.