Forum Moderators: open
What is the best way to handle this?
---start a new account (this doesn't seem like a wise idea due to so many problems with site maps)?
---or can he just change the email?
The previous guy is either authenticated via a meta tag or a file in the root directory that starts with 'google...' If you don't want him to be authorized, just delete his file or meta tag and the next time Google checks he'll loose his authorization.