Resolution
Symptom
When I go to Utilities > Administration > Administrators > List Administrators, I only see the option to delete from one list at a time.
Resolution
1. Click members > view members.
2. Click find members at the top, right corner.
3. Type in the email address.
4. Click "all your lists" next to the search in option and click go.
5. Click delete all results.
6. Remove the checkbox that states: "Don't delete list administrators." and click delete.