My mom went into hoarding when after my grandma died my brother and I didn't live there, it obviously never got that bad. We would go there weekly to make sure it was safe, clean of garbage and just let her do her cluttering until she was ready to stop it. It is what she needed to do. Her house is still really cluttered with stuff like clothes, shoes, books etc. but better than it was. I can't believe people would let their mom who they claim is depressed live like that. I hope for all their sakes they take a few days buckle down and get it clean.