I know how difficult this has been, @LDB4. Thanks for sharing details of your Intuit log-in concern. I'm here to provide additional information about this. 

To start, let me share the following scenarios where an Intuit account is mandated when logging in to QuickBooks Desktop (QBDT):

• When the user created a new company file.
• For those users with the following connected services: Payments, Payroll direct deposit, TSheets time tracking, Payroll Workforce, Receipt Management (new for QuickBooks 2021), and more to come.
• When an existing company file is opened using the Admin credentials, and no Intuit account is associated with the file, the QuickBooks user will be prompted to log in or create an Intuit account. Pro and Premier users may choose to delay this action for up to 28 days and QuickBooks Enterprise users for up to 42.

For reference, feel free to check this article: Intuit account – Why now for QuickBooks Desktop?. 

To temporarily stop the login prompt, just select the Remind option if you don't want to log in to your account. However, you'll still be asked to again after 7 days. 

Additionally, if your RealmID (company identifier) is not saved in your company file, the program will require an Intuit login every time you attempt to open it. To prevent this, please head to Intuit login is required every time the company file is opened at this link for the detailed instructions.

On the other hand, you might want to change the login setting to can stay logged in to your QBDT file without having to enter a username and password. For the detailed steps, check out this link: Stay logged in to the QuickBooks company file.

I've also attached this helpful resource for guidance in managing your data safely and easily: Access and manage your data from the One Intuit Account Manager.

Please let me know if you have any other follow up questions about this. I'm always here in the Community to help. Have a great day ahead.