No employee of the Department, a state hospital or training center, a community services board or behavioral health authority, a community services board or behavioral health authority contractor, or any other public or private program or facility licensed or funded by the Department shall serve as an authorized representative for an individual receiving services in any state hospital or training center, community services board or behavioral health authority, community services board or behavioral health authority contractor, or other licensed or funded public or private program or facility, unless the employee is a relative or legal guardian of the individual receiving services.