There are two ways that you can edit the paid preparer information in QuickBooks Desktop. Here's how:
File Form Window
Go to the Employees menu.
Choose Payroll Center.
Find the File Forms column.
Select a form and then press Create Form.
Hit the Auto-Fill Contact Info button.
Company Information Window
Go to the Company menu.
Pick My Company.
Select the Edit icon (Pencil) on the Company Information window.
Pick Payroll Tax Form Information.
Click the AutoFill button.
Make any changes that you'd like and then hit OK to save the information.
If you're not able to do these steps above, then you may not have the Enhanced Payroll for Accountant's subscription. You're only allowed to make changes to paid preparer information when subscribed to Enhanced Accountant payroll subscription.
Should you need any further assistance, please don't hesitate to let me know. I'm here to help you every step of the way. Bye for now!