I'm a Subuser - What will happen if the main owner's account gets deleted?

Hi, 

If the primary user on this account deletes her profile, will this delete our account full stop or will I then move from sub user to primary user?  

It will just delete his account - It won't make you as the main account owner since you two have your own respective JotForm accounts.

If the main account owner will push forward with account deletion, I would recommend you advise him to request for the forms to be moved from his account to yours. If the forms don't have any submission data in it yet, then cloning them to your own account would suffice.

Related guide: How-to-Clone-an-Existing-Form-from-a-URL 

Any requests to either delete the main account or the forms moved will have to be initiated by the main account owner though. So, please relay this information to him in case he wants to proceed either way. He can post a new thread, while logged in to his own account, on the link below:

https://www.jotform.com/contact/