Hi @Eric Finch ,
Welcome to our forum!
In Office 365, each user needs to have a separate Office 365 account with the Exchange Online license.
After that, your users have Microsoft 365 licenses, sign in credentials, and Microsoft 365 mailboxes.
So I need to migrate my emails from the Bluehost domain into Microsoft so I can continue to use it going forward.
If your previous email provider supports IMAP, a suggested way is to use IMAP migration to migrate email accounts to Office 365. The step 2 of the IMAP migration need you to prepare your IMAP source email system and get the information you need to migrate. Here are the detailed steps to do it:
Meanwhile, you can use the Outlook client (for Windows) to migrate the emails to Office 365. Here are the steps for your reference:
I now do not need web hosting but need to keep the email address active.
You can add custom domain to the Office 365 subscription. After that, you can use user@ourdomain as your email address. Check this: https://support.office.com/en-us/article/change-your-email-address-to-use-your-custom-domain-f4d8cae9-6d06-4c4b-b4e5-6581fd05ea82