Two options are litigate or ignore him. If you litigate it will cost you legal fees, uncertain if you win, uncertain of amount awarded and ability to collect. You can also seek an order of protection if he is harassing you.
Review your situation with your attorney. Make sure that you complete the statement of net worth and include tax returns and pay stubs. If the income differs by a few thousand, then the new formula should not trigger spousal maintenance being granted.
Contact a local personal injury lawyer to represent you if you have been injured. If you are not injured, then your insurance company will provide an attorney to defend you. If you are just seeking damages to your vehicle, then consult with a local attorney. At depositions they have a lot of latitude. They will want to know how the accident occurred, what your injuries are, what type of medical treatment received and proof of lost wages..
Consult with an experienced medical malpractice attorney to have your medical records reviewed to see if a medical professional deviated from the normal standard of care in the profession. A thorough analysis of the record needs to be done before one can consider a malpractice claim.