University of Illinois system
In addition to his work as a lawyer, Lamont was involved in community and public service in a number of ways. For over 25 years, he served as a Judge Advocate General for the Illinois Army National Guard, eventually becoming Judge Advocate of the Illinois Staff, and retiring with the rank of colonel in 2007. In 1990, Lamont was elected as a trustee of the Board of Directors of the University of Illinois system for a six year term. In 1996, trustees went from being elected to appointive, and he was subsequently reappointed in 1996 and 2002, ending his tenure as a trustee in 2003. He served as a member of the Illinois Board of Higher Education. He also served on the Military Academy Appointments Committee of U.S. Senator Alan J. Dixon (D—Ill.).