I have Quickbooks desktop 2018 multi user I need to remove one user and add another any advice?

Welcome and thank you for posting here in the Community, @GW8.

I'm here to help you add and remove user in QuickBooks Desktop (QBDT).

You can add and delete users under the Users and Roles page. Let me show you how.

To remove a user:

1. Go to Company at the top menu bar.
2. Select Users.
3. Click on Set up Users and Roles.
4. Go to User List.
5. To remove an old user, select the user's name and click Delete.
6. Click Yes to continue.

To add a new user:

1. Click New under the Users and Roles page.
2. Select a username for the new user.
3. Enter and confirm your password.
4. Select roles for that specific user.
5. Click OK.

That would allow you to remove and add a new user in QBDT. Feel free to add a comment below if you have any other questions. Wishing you the best!

Thanks  for your help. Next step is how do I download the desktop software for the other user.  Do I need to buy another license?