(Having read the earlier responses…) Yes, there are many things to do.
after reading the available documentation, I would try to meet and interview Maria first, then also the Beckers, the school teachers, Maria’s parents… As Suzanne noted, it would be important to get proper advice regarding maria’s immigration possibilities and status, if that hadn’t been done. I would also want informed and detailed advice about her diabetes and asthma situation, including the expense of medications. I would call Consuela in El Salvador, and ask her about these things (and try to get her not to talk so fast that I can’t understand her). I would have many questions for her.