Hi
I would be cautious about bringing someone into your home. I believe that makes them an "employee" in the eyes of the tax law and you will have some additional tax obligations. Not 100% sure but I recall that being an issue with some national political campaign and was nicknamed "nannygate".

I know, the stupid stuff I store in my brain.
Another option would be to find a center with a lower ratio. The high teacher to child supervision ratio is important. I would choose to keep him in an enviroment where he is with children his age. He needs to learn to play with kids his age without biting them.
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Ruth
Watch our progress at
www.guatemalansisters.blogspot.com
Mom to 5 Daughters
Ages 21 & 20 (bio), 8 (home from Guatemala for 4 years) and twins ages 4.5 yo (home for 18 months)
Lived in the Pacific NW my whole life but Connecticut bound in June 2008