I have cared for my grandma(91yrs with dementia) for 8 years, and just move her into a care home. She says she is comfortable and happy. Her old neighbor has visited 2 under a false name and has tried talking her into selling her home which is her income to pay for her care. I do have POA over Grandma can I press charges or prevent her from seeing my Grandma? Or other options on how to handle this matter?