[8][9] During World War II he was a first lieutenant in the United States Air Force from 1942 to 1946 in Europe.
[9] He taught at the University of Iowa College of Law as an assistant professor from 1947 to 1949.
[3] He was a founding director of the National Institute for Trial Advocacy, a member of the Standing Committee on Practice and Procedure, Judicial Conference of the United States (1977–78), a member of the National Institute of Corrections, a Fellow of the American Academy of Arts and Sciences, an honorary trustee of Bar-Ilan University, a member of the board of directors of the American Judicature Society, and served on the planning committee of the Claims Commission, which made recommendations regarding allocation of reparation monies to be paid to Holocaust survivors.
(Foundation Press 2000), Russell R. Wheeler & A. Leo Levin, Judicial Discipline and Removal in the United States (Federal Judicial Center 1979), A. Leo Levin, Russell R. Wheeling & R. Pound, The Pound Conference: Perspectives on Justice in the Future (West 1979), A. Leo Levin, Problems and Materials on Trial Advocacy (Foundation Press 1968), and A. Leo Levin & M. Kramer, New Provisions in the Ketubah: A Legal Opinion (Yeshiva University 1955).
[15] The annual A. Leo Levin Award for Excellence in an Introductory Course was established in 2002 at the University of Pennsylvania Law School in his honor.