Who can contest?

You misunderstood....we have a homestudy. The parents and the county choose us to be the adoptive parents and both parents signed the consent to adopt listing us as the placement family. Two weeks later they signed TPR and as soon as they did Great Aunt hired a lawyer that said the consent to adopt was now null because they signed TPR. Judge ruled that THEY needed to get a homestudy and then we would be compared to them to see where the "best interest of the child" would be met. The GAL is in favor of relative placement above all else and the social worker for the children wants the children placed with us. Well the relatives homestudy wasn't approved. Chances are unless they were denied for trival reasons we will never know why. Which I am fine with. The only reason we are fighting this battle is because we feel the parents rights were not monitored. The court tricked them into signing under the pretense that the children will come home here. Anyways...I will let you all know what happens next week when they decide what comes next.