[rgharris]

I just did this for a controller that is hosted on a VM (via the new controller UI), I went through a couple of additional steps.

1. Disable "Enable Remote Access"

2. Setup SMTP (since disabling remote access stops routing emails through Ubiquiti's backend)

3. Create a new admin not tied to a cloud Ubiquiti account (via "Administrators")

4. Disable "Sync Local Admin with Ubiquiti SSO" (the older UI says "Enable Local Login with UBNT Account")

5. Delete the old admin account

Steps 3 and 5 may not really be necessary, but I did to be safe.