I really truly regret adopting one child (would have been better to keep as a foster so he could have had access to more services).

I think this is why Christian's current foster family has not moved toward adoption. The more I find out, it seems that it is best for him to stay with that family. He's been there a while, he's doing well - I'm not sure if tearing him away from that would really be the best thing.

Thanks again for all the experience and advice!