No sure how old your kids are, but be delicate - this person has been around 5 years, which I'm going to presume is most of their lives. While they will be ok, it may be difficult for them to adjust to the change.
Please keep the thread updated. We have a live-out nanny that we are very happy with, but wouldn't discount the idea of an au pair in the future.Warning: Spoiler! (Click to show)
and don't forget to post pics