Hi diana-weatherbee,
Your business is always changing and evolving, and it's essential that QuickBooks Online can change along with you. I know changing the firm linked to your username/email would be handy. I'll explain how this works.
You can submit an Email Change Request form to set up a different email for your QuickBooks Online Accountant firm. Doing this is really simple, and you can access the form here: Change the email address you use to sign in. This doesn't automatically link your current email with a different QBO account, but rather it changes the email you're currently using to sign-in.
I hope this helps to clarify things for you. If you have any other questions, or if I've missed the mark with my response, please don't hesitate to reach out to our tech support team.
Cheers.
