Hi @brunbennett1 We're so sorry for your loss, and I truly understand how overwhelming this situation must feel. We’re not able to see what was sent or received on your end, but we do want to help guide you in the right direction. 

Since the account’s 2FA is tied to a phone number that’s no longer available, the next step is to review the process for determining who the Primary Admin is and how to request a transfer of those rights. You can find that information in this support article Manage Users for ProSeries please scroll to the very bottom and look for the section titled “Determine who the primary admin is and transferring those rights.” That section will outline what needs to be done to move forward.