How many kids are you allowed??- foster/adopt

I've six adopted kids, and my State (WI) has the limit of eight kids per family, BUT they allowed me to take in a sibling group of THREE, so I have nine right now... there is a one year old sibling I"m trying to get as well, but they're not being swayed so easily and it's doubtful I'll be able to get placement of him... but it's worth a try! :~) Kelly