How is your house set up? Are you able to provide a clear separate living space for them. The closer it is to a basement suite the better. If you are just providing them a room and they will eat meals with you you are essentailly adding a family member. If you have a basement suite then you are far more separate.
I have never had one but several friends did. The ones that worked out had clear expectation of days off (Do they babysit evenings for your, weekends when you get groceries, do you pay extra for this), behaviour in the house (houseguests, boyfriends), responsibilites (do they cook for your family or are they off when you get home).
The less defined these items are the more issues you will have.
If your kids love the nanny it is a pretty significant break up for them if you have to get rid of them more so in my opinion then changing daycares.
|