I'm sorry your question is a little confusing. I think it says biological father has custody of your nieces, and he wants to move with them to Michigan. I don't know much about bio father, but if he is a fit and proper parent, he can probably live where he wants. Your sister, if she has parental rights left, could file an action to oppose the relocation, but under her current circumstances of not having custody, I don't know how far she would get. There's a lot of facts that go into relocation cases. As a relative, unless Father and Mother are both unfit, you would not have any grounds that I know of to file for custody. I know that's not what you're looking for but Father has the strongest rights in this scenario. Mother comes in second, but it sounds like her rights have been limited by the Court. You probably don't have much of any rights at all. I'm sorry.
Answered on Dec 09th, 2019 at 2:50 PM