Keeping email address- it's complicated

The account at my address is currently in the name of someone moving to another state and cannot use FIOS.  The person moving wants to cancel the account cause it is their name.  I am willing to get services in my name.  Just wondering if anyone knows if he cancels service and then I order new what would happen to current verizon email addresses that are sub accounts on his account?  Could we still use them with new service in my name? 

Thank you