can a father sign his rights over to an uncle that the child see as a father??
Where I live, it wouldn't happen. The court won't allow TPR in the absence of horrific abuse unless the custodial parent's spouse is willing to adopt.
Are you saying the father and mother broke up and one of them has a brother that wants to adopt the child? If it's not the brother of the mother, is she with her ex's brother in a committed relationship?