Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear respected Lew Derrickson,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
As per your description, the best Microsoft Office product for your iPad would be Microsoft Office 365. This subscription-based service, it includes the full suite of Office applications such as Word, Excel, PowerPoint, and Outlook, optimized for use on the iPad and you can also access your files across multiple devices.
For your reference: What you can do in the Microsoft 365 apps on mobile devices with a Microsoft 365 subscription
Appreciate your patience and understanding and thank you for your time and cooperation.
Sincerely,
Waqas Muhammad