i relate to this because i am also trying to get a 15 year old emancipated. Under your circumstances it sound like you might be able to get a transfer to a different parent(legal guardian). I do believe that the only way to get emancipated at that age is to be in legal marriage.
This raises a problem though... in order for minors to get married they have to have parental consent. I believe that is the only way but i'm not possitive. There has to be certain circumstances that allow a 15 year old to get emancipated though.
I've been up for 28 hours researching so if i see something that can help i'll post it here

