Welcome to the Community, @MRobinson01.
Yes, you can switch back to multi-user mode while waiting for the file from the accountant.
Switching between single-user and multi-user mode in QuickBooks Desktop does not impact the creation and sharing of an accountant's copy. As long as other users aren't changing the data that can conflict with your accountant's changes, then you can definitely switch back to multi-user mode.
When ready, check out this article for the step-by-step process of setting up your company in a multi-user mode: Install QuickBooks Desktop on a server.
Should you come into issues when switching to multi-user mode, feel free to browse through this helpful article: How to Fix Error H202 and H05.
I want to ensure that all of your concerns are addressed properly. Should you need any more help with sharing an accountant's copy in QuickBooks Desktop, you can always ask your question here by hitting the Reply button or starting a new thread. Stay safe.
