Account Administrator has died

Hi Dominick,

Thank you for reaching out, and I’m very sorry for your loss.

In your case, first you need to check whether there is another administrator. You should ask whether anyone else can sign in to the Microsoft 365 Admin Center. If another Global Administrator exists, that person can be able to:

• Go to Users > Active users.
• Select or create the replacement administrator.
• Assign the Global Administrator role.
• Confirm that the new administrator can sign in and register MFA.
• Block the deceased administrator’s sign-in. You can consider deleting that account if needed.

If the deceased administrator was the only Global Administrator for your organization’s Microsoft 365 tenant, in this case, you need to contact the Microsoft Data Protection team for Microsoft’s tenant ownership recovery process.

Please try locating the appropriate hotline for your region here: Customer service phone numbers - Microsoft Support 

Here are some tips and an example of a prompt to help you navigate the IVR more effectively: 

(When you call the support number, you may hear an introduction of about 30 seconds, such as "you can visit the link...". You can ignore this introduction and wait until you are presented with the options. Then press "1" as a business email user, and again "1" for technical help.)

• What kind of problem are you experiencing?        
• Answer: Authenticator        
• What products do you use?        
• Answer: Office 365 for business        
• Is this for an education or company account?        
• Answer: For companies        
• Are you an administrator?        
• Answer: Yes        
• Are there any other administrators in your organization?        
• Answer: No. I am the only admin in my tenant         
• Do you need a... Service request?         
• Answer: Yes. I need to create a ticket. Please send me directly to the Data Protection Team.     

During the phone call, you will need to provide the information associated with your subscription, such as your company name, billing details, phone number, and an alternate email address, etc. This information allows the Data Protection team to verify your identity and securely assist you in regaining access to your administrator account.

Hope this information is helpful. While I’m not able to intervene directly, guiding you to the right support team is the most effective help I can provide here. 

Hope you're able to get this resolved soon.