Did anyone notice she sold the house to someone who was into ghost sightings? If the person has a commercial interest (I believe he allegedly does), it is allegedly about money so that is what it is about. He isn't going to buy a house that doesn't have publicity. The house sold for $35,000.
The exorcism was done by a priest and it was non-Biblical. Why? Because there is a kind of demon that only can come out by prayer and fasting.
Matthew 17:19 Then came the disciples to Jesus apart, and said, Why could not we cast him out?
Matthew 17:21 Howbeit this kind goeth not out but by prayer and fasting.
There are other non-Biblical reasons why the whole thing is untrue but I'm saving them for the next time I'm really challenged by someone.