Hi @SuperSago1,

As mentioned by my peers above, it would be best to contact our Technical Support team for assistance on changing the administrator of a QuickBooks Desktop company.

Here's how:

1. On your QuickBooks homepage, go to the Help menu.
2. Choose QuickBooks Desktop Help.
3. Tap the Contact us button.

Post your queries below, in case you have anything else in mind. I'll  get back to you.