Hello there, @john1992.

Allow me to share some information about changing the master admin role in QBO.

As mentioned by my peer above, changing the master admin role on the account will depend on who's paying the subscription to Intuit. 

In the meantime, If your accountant is the one paying the subscription, you can contact them. This way, he/she can assist you to transfer the Master Admin rights of your account.

However, if the master admin is no longer available. You can follow the steps provided by my colleague Joesem M on how to contact our support team. They can submit the Master Admin Transfer request for you. 

Also, to familiarize yourself with the different user types available in QBO, see this article for details: User types in QuickBooks Online. it contains a list of every type of user you can add in QBO, along with a short description of their roles. 

Other questions in mind? Let's hear them out. Drop a comment below, and I'll get back to you.