It appears there are several issues here. Crimal (tresspassin and threats being made) and soon to be inheritance issue. Is your father and his girlfriend both on the lease for the home in which they share? Do either of them own the residence or do they rent it? If they rent the residence and they are both on the lease, it would be a criminal issue (in my humble opinion.) I would suggest to him to change the locks on the house and contact the police to inquire about tresspassing laws in your state. Also, if your father truly fears for his life, he could file a restraining order against his son. Considering all the facts are not known as to why the son has such a problem with his father, there might be more to this than what we see here.... I wish you much luck.
Additionally, you didnt indicate how long your father has been with his girlfriend. If they are not legally married, and she has living children, he may not have any rights to any of her possessions. I would assume you could contact a lawyer that deals with estate law and see what they say.
I am not a lawyer nor do I proclaim to be. What I post here is not advice but merely my opinion. Nothing more. nothing less.
[This message has been edited by LadyFable (edited October 12, 2000).]