Using the info in the link you provided, I can’t change it in settings>general. I have the issues I mentioned above. I have myself listed in Users as an administrator with my correct email address. I guess I could delete the other user (web designer, who’s email is listed as [email protected]). Would that force WP to update the administrative email address for my site to my email address?
I don’t have Bluehost or the technical expertise to feel comfortable using option 2.