@billcx
You can purchase a one time license of QBD 2021 Pro/Premier for 1 user. Then you may have 2 options:
1. Deploy a private cloud on one of the computer and let another computer to access your data by internet connection.
https://partners.myquickcloud.com/?pc=fiatlux
2. Put your license and company file(s) on an authorized QB cloud hosting.
http://www.apps4rent.com/#a_aid=quickbooks
