Why doesnt the law protect my grandchild?

Since death of my grand-daughters parents we have had guardianship of her(maternal grandparents) We verbaly agreed to days and times to see her which we were going to do anyway, but since grand-mother was dying of cancer and grand-father was also sick they said they wanted their daughter to take over picking her up etc. 7 years have gone by, they have both died and the situatiin out there is horrible for her. Yelling, swearing, aunt cheating on her husband and many more things. When we went to the lawyer to cut down the time out there we were told she had to be 14 or unless bodily harm was done to her. I hate to think what that means. She is 11 years old and gets emotionally sick going out there and is treated very badly, she wants us to try again. Will it be the same story again though? Child protection wont help either, says shes too young to testify. What should I do to ensure my grand-daughter isnt put through this anymore. We live in NE Pa.