How to Take in Abused Minors

My question involves child abuse or neglect in the State of: Arizona
My daughter's friend and sister, ages 15 and 17 are being abused physically and mentally by their adoptive mother while their adoptive father does nothing. This abuse has been going on for years - they were adopted as very young children. The stories they tell me are disgusting. They have begged me to not call cps, so I haven't yet. But after tonight's conversation I just can't sit by and allow this abuse to continue. My husband and I want to take the girls in, they visit every day and are very comfortable here and have said many times that they wished they lived with us. So my question is: what can we do to ensure that the girls could live with us and not be placed in foster care. The fear of that happening has been what has prevented us from contacting cps sooner. We want them out of their horrible home but we also want them to live with us.

You can ask their parents for permission for them to live with you. If their parents say "no", that pretty much ends it.

I live in Illinois, so I'm not sure how it differs, but it should be pretty much the same thing.

We have DCFS (department of child and family services) which I believe is about equivalent to CPS. When I was taken to my home I was put in a foster home because I told them I didn't have any relatives in the state (I forgot about my aunt and uncle we never saw, oops.) After a month, I moved in with my aunt and uncle when they discovered I did have family in-state. They could keep me for 30 days before they had the legally register as foster parents, which they did and I was able to stay there until custody was returned to my mom.

I hate to break it to you-- but you're not getting anywhere unless you bring the issue to the authorities. Get yourself and your husband certified as foster parents and try to take them in once they are in the foster system. You may not get them right away, but they usually ask the kids if they have any close family or friends they can stay with before putting them in a random household. If becoming a foster parent there is anything like it is in Illinois, it should be pretty simple and relatively quick. Good luck(: