New School Impact Fee

I read an article today about a new School Impact Fee to help pay for new schools in Brevard County. I have to contact Allen at Renar to figure out how this will affect us. Will we be exempt since we already signed our contract? Its almost $5000 for a single family home, quite a chunk of change. It goes into effect Sept 24. For that much money I may as well have had our porch added during construction. We'll see.......