I live in Trenton New Jersey. I have residential/physical custody of my god child. Her parents have visitation through the courts.

If you feel it is not in the child's interest to spend the summer with the maternal grandmother and the mother's visits are restricted by the courts, then the grandmother would have to apply to court to show why it is in the child's best interests to spend the summer there. If there are restrictions against the child's mother, then the child's grandmother would have to show that she would supervise the mother's visits with the grandchild and that the mother is not living in her home unless the grandmother is present continually to supervise. Of course, much depends upon the wording of the visitation orders. You should consult with a family law attorney.