Super Administrator: This is the person who originally created the LMN account and has the capabilities to manage all Administrators. The Super Administrator is the only one who can make changes to the LMN Membership.
The Super Administrator can set Administrators permissions so that they have full access (in LMN -> Options + Support -> Set up Security -> Edit and Save).
Administrators: Have the ability to mange LMN Estimating + Budgeting and LMN Time.
A request to change your company's Super Administrator would need to be received on company letterhead (signed by the original Super Administrator or the owner of the company) to firstname.lastname@example.org