@Teri_Kanefield It's useful to set up a free account on uptimerobot.com .... monitors the site and instant notifications of downtime. Like, instant.
Also, server-level backups (I think he's on AWS) are very important.
Last but not least, I use Blogvault for Wordpress backup for my own and all my friend and family sites - I've had situations where I've had to do a restore and have things back up and running in <10 minutes. Well worht the investment.
Have him reach out to me again if he wants to chat.