Since you are in Hong Kong it would be a very good idea to get some legal advice.
If he will NOT leave and you are finished with his antics, then I guess .......................... you will have to remove yourself.
Please don't be a stranger. Keep posting. Let us know how YOU are doing as we do care very much, and I am honestly not even sure there is any Alanon in Hong Kong. Many of us have been where you are now and share our own ES&H.
Love and hugs,