Does your mom have custody of you're daughter? If not she has no right to keep her from you. And even if she does if you feel its injust you can try and fight it legally. As for making you pay their rent, there is no way they can legally do that, so don't feel like you have to it sounds like they're trying to use emotional manipulation unfortunately I have to deal with that from my mom and some other family but the best thing to do is not give into it.

Do you have a therapist or anyone to maybe talk to about what steps you could take or that could point you to some help...I mean it sounds like it would be best to get some kind of legal advice on this.

I actually know someone going through something simular, her parents basically had her living at home and somehow had her SSI money going to them so she took legal action to fix that problem and got her money and moved out...but now her parents have her daughter not sure if they have custody or not but they tell the daughter a bunch of crap about her mom trying to make her not want to see her. And as far as I know she's trying to do something about it...but obviously its a hard thing to deal with.

Anyways I hope you can find some help with this.