Why is your neice not liviing with her birth mother? I certainly wouldnt want her in a place where she is not wanted.
Unfortunately her home life with her mother was just as disturbing, in a different way - She went on to have other children with different partner's.. Boyfriend's in and out all the time ect ~ She just up and decided she didn't want the girls anymore so gave my brother the choice of take them or DOCs will, My brother couldn't handle the financial (and obviously other) responsibity, So initially i took them in while he sorted himself out (made room, sorted finances out ect) - Like i said their lives have been all over the place, I can't say it was the easiest time of my life, I was 22 and had just had my own daughter but i so wish i'd have kept them with me - We remodelled the house so they'd have uber cool bedrooms, they settled in school, made friends, life was 110% better for them IMO.

I should also add that she is not an angel, she slams doors, throws tantrums & is a typical teenage drama queen but she is far from a teenage rebel - No drugs, drinking, boys, tattoo's ect.