it sounds like you have been outlawyered. Hire a lawyer to proceed to protect your rights. Just sitting back and waiting for your opponent to bring the dispute to you is often a losing strategy.
You might find my Legal Guide helpful "How to Choose A Lawyer For You"
You might find my Legal Guide helpful " What Do I Tell My Lawyer"
It appears that you have an action for trespass and destruction of your property. Take pictures and perhaps you may want to install a video camera to use as potential evidence is your civil suit concomitant with a preliminary injunction issued by the Supreme Court in Riverhead.