I agree, get the person over to meet you and your child first,a few times even, at informal interview and when you go out locally... It can be pretty daunting for both child and grown up if child wakes up to complete stranger and gets upset.... Can you get someone in to babysit and then member of family to stop over when all the celebrations are done??? Hope you sort something out, and try not to stress too much, site you have enough to be doing with a wedding. :)