Well your sister is right,the father can file for custody if he finds out that the mother is signing to give anyone consent to file for guardianship. The father would have to be notifiled before the court would would grant the guardianship. That is required by law giving the other parent the right to ask for custody. The same rule would apply if he tried to do the same. If she can get both parents to sign then she would have a better chance of the court approving the guardianship.





