Dear Abby: My aunt and uncle, who are hoarders, have taken over my grandmother’s house

Dear Abby: My aunt and uncle, who are both in their mid-to-late 50s, live with my grandmother, who is in her early 80s. They are hoarders and have taken over half of my grandmother’s house. They came to live with her for the summer eight years ago and constantly cause strife for my father. They take things without permission and are now babysitting my cousin’s daughter almost every day. My aunt is easily offended and deflects any criticism, while my dad avoids confrontation at any cost. Should I do something, or is it not my place to get involved?