Hi Patrick, thanks for coming into the forums. I'm also a user like you and I'll be more than happy to help you to the best of my knowledge.
Unfortunately, you can't transfer your Office license to another Microsoft account as per Microsoft policy.
What you can do is add a new email address as an alias and make it a primary, you can also remove the old email, please click the link for the complete guide: https://support.microsoft.com/account-billing/1898efcd-3f0a-6646-46d8-5b681999e047
Make sure that the new email address is not yet associated with Microsoft account otherwise, you'll get an error.
I hope this helps. Please feel free to get back if you need any additional info.
Kind Regards
Myk