How can I fight him on the two-year living together?

I am living in my home. My mother paid the down payment. I paid mortgage since 2004. The husband hasn't been working 10 for years not paying anything to live here. We own a home and property in New York. I am not allowed key to New York home. His conduct is damaging my health. I am telling his lawyer he has been living with me past two years but not so I asked him to stay out of this home. He refuses, bullies me and runs up bills. We have a son who needs psychological attention but my husband is not allowing the care he needs. This is tearing me apart. I have a 97-year old mother who needs me to care for her but the husband yells at her. She is terrified of him. He tells me that he would love to strangle her until the blood rushes out of her head. He sold a property in Virginia and made $300,000. I didn't get a penny. He bought three cars, three baby grand pianos and has all belongings in New York. He is rarely around and when he is he shouts, removes my files and takes pots, pans, all my silverware utensils and dinnerware.