Hello @TJDaly,

You can ask your accountant to install the QuickBooks Enterprise 18 to let him/her work with the accounting needs in your business, Let me show you how your accountant can install the software.

1. Download the QuickBooks Enterprise 2018 at this link: Download QuickBooks Desktop.
2. Once the file is downloaded completely, the installation will automatically start. If it doesn't, double-click the installer file to proceed.
3. Select Yes to All then hit Next.
4. Mark the Software License Agreement then click Next.
5. Enter the License and Product numbers, then hit Next.
6. Choose a type of installation and the location where to save QuickBooks.
7. Tap Install.

Once done, you can create an accountant's copy of your company file and send it to your accountant. Learn more with the steps outlined in this article: Create an Accountant's Copy of your company file in QuickBooks Desktop.

Additionally, you can also share this helpful article with your account for the steps about how to access your company file in an accountant's copy: Use an Accountant's Copy working file.

If there's anything else that I can help you with, please let me know in the comments below. Stay safe!