He eventually specialized in legal matters related to distilleries and wholesale liquor houses, establishing himself as a prominent business lawyer.
[4] In 1903, Sanders was elected as a Justice of the New York City Municipal Court, serving until 1913 when he resigned to return to private law practice.
Sanders also held leadership roles as Grand Master of the Independent Order of B'rith Abraham and president of the Jewish Fraternal Congress.
He was a member of the board of governors of the Jewish Maternity Hospital and a founder and president of Temple Beth-El in Cedarhurst.
[3] They had three children: Frances Van Pragg, Theresa Penner, and Nathan N.[6] Leon Sanders was killed in a car accident in California on August 18, 1937.