A Mississippi native, Lillian remained in Virginia after graduating from Washington and Lee School of Law and serving as a judicial law clerk in the Circuit Court for the City of Richmond, Virginia, for the Honorable W. Reilly Marchant and the Honorable Claire G. Cardwell. During law school, Lillian served as Chair of the Moot Court Client Counseling Competition and also worked in the United States District Court, in both the Northern District of Mississippi and Western District of Tennessee. Her practice at Harman Claytor focuses on general liability defense.