My aunt appointed me POA over the grandchildren one is in jersey the other in another state. What do I do?

She stated to the entire family not the grands , but her daughter in law, neces, and sister who is also POA.that when money runs out put her in the nursing home the money is slowly disappearing do to the help .in I send the grands text about her wishes and now their telling that their grandmother isn't going to know home .my aunt have stated that she is not going to the another state with her granddaughter and she dont know them that well and the grandson in jersey just got a place I guess this is what he say but he have six children that he didnt care and also had serve time. What do I do.