We have 5yo twin girls who have been with us over a year, and their half brother (19mo, been with us 6mo). When he was removed, the GAL filed termination on all 3. We were set to have court early december, but it was continued until March. Now the GAL is looking to split the kids and change the goal to reunification on the baby - which she says means he has to be moved out of our home (because it would be too confusing for the girls for the baby to have visits, while they do not). We understood, initially, that there was no guarantee that he would stay - but once they filed termination on all 3, I never imagined they would change their mind and put us on this roller coaster. She feels she has plenty to present a case on behalf of the girls, but because mom never had a caseplan on the baby, she thinks it's premature to try to get termination. Makes absolutely no sense to me. Same mom, same issues - and there were plenty of notations and comments of concern in regards to care of the baby while she was having visits with the girls.
I'm not sure what state you're in, but I looked in to HHS policy in our state. Some states have rigid rules about keeping siblings together - regardless of whether or not there are different fathers. I used this website, and then googled the rest:
http://www.hunter.cuny.edu/socwork/n...t_Policies.pdf
Good luck!!