I too, would be more than happy to meet with the grandmother, she just wants to check you out for the mother to make sure your not a psycho and a good fit for her grandchild. BUT, before anything further you need to meet the Mother and the child. The Grandmother coull be great and the Mother could be a nut job...you are not doing business with the grandmother you will be working directly with the child and the Mother, so make your decision based on that meeting. the meeting with the grandmother is for the other sides opinion not yours. hope they are all great people