Lee was involved in advocacy and lobbying through AASE, which resulted in significant improvements in service delivery for all students. She was a foundation member of AASE, a State President and an inspiring active Branch, Chapter and National Committee member until her death in 1990. Lee was also instrumental in the establishment and administration of the Australian Disability Achievement Foundation.
The Lee Mills Teacher Training Award is given yearly with the express purpose of encouraging research-based practice by individuals undertaking study to pursue a career directly related to the education of students with special education needs. It is open to students in ALL states of Australia.