I think Karlie is doing her dash in that regard. As a knowledgeable member said earlier, she statistically has less than a 1% chance of regaining custody of William's sister - if she was/is serious about that.
With further crimninal activity, that less-than-1% chance may have reduced to a 0% chance.
That's only if she committed a crime though? Need to know what it's all about before that determination can be made i would think.