My son 23 and his girlfriend 19 broke up and she gave him their son. They wrote a paper stating my son has the baby Monday to Friday at 5 pm and she gets him from Friday at 5 pm to Sunday. He has done 80% of the parenting since the baby was born. They live in 2 different counties and she wants my son to do all the running to bring the baby to her and return of the baby to him. The paper was not notarized but her grandmom witnessed and signed the agreement. I want my son to get some kind of custody to protect himself so she can't decide to take the baby back and not let my son have him again. What do we do? We don't want to lose the baby but he wants her to still have a relationship with the baby.We live in pa