Narcissists never realize what their behavior does to others. They only realize that they themselves aren't getting the attention/ego boost/power fix they used to get. It is all about control. Everything still under his control (lawyer, house key, stuff in the attic, etc) will be used to his benefit. I know its harsh and feels bad, but you need to stop being nice and understanding. Those are like a back door he will exploit to wear you out.