Thanks guys.
@ rayne: Yeah, my brother is still with my mom. He's not legally conserved by anyone, so he has to go into the governemnt office and tell them he wants to go to group home or they won't do it. They treat him just like an adult, making his own decision because of not being conserved. But at the same time, he is mentally challenged. My mom is going to manipulate him to convince him not to do that, and it's not like he drive himself down there to do it, anyways.
We did make some progress, though. We got my step-dad to get legal control of his bank account. Before that, my mom and her loser junkie friends were stealing money out of his account to feed their habits.