I maintained a family home for 10 years and then my sisters partner borrowed against it due to financial exploitation of my folks over the past 3 years (father had a brain tumor, radiation and more trauma from a car accident,cognitive decline). He is now threatening/manipulating/harrasing them for money. My family has tried to find remedy with this man. In regard to the building upkeep. Is this a tresspass by way of loss for i? The mortgage would not have been approved if it had not kept it in good shape.