My boyfriend has been diagnosed with a disability rating from the veterans association for ptsd. He is in tremendous debt

Contact police if you are threatened with any physical harm. Immediately. If he takes any of your personal belongings, report the theft to police. If he refuses to pay rent and you have some kind of agreement with him, your options will depend on the type of lease you have and whether he is on the lease or not. You may consider a restraining order if you are in fear of harm. See a NY attorney immediately to discuss your best options at protecting yourself. Only then, when you are safe, can you help your BF with his PTSD issues.

If you are in fear for your safety I suggest you contact the police and you go and seek and order of protection.

If you fear him you should file a complaint with the police and go to Criminal Court to seek an order of protection.