Take him up on his advice and sue him. Also sue his girlfriend too since she may come under the statute. You should consult with an attorney and file suit. If there is insurance, they will defend. Your attorney will then be able to find out the company's name and limits.
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There are some services that plaintiff's attorneys use to find out insurance information, but in your case, its advisable to file a lawsuit against the individual and his girlfriend in your local common pleas court. Should he or she have insurance, they will contact their insurer in order to get legal representation. Should they not have insurance, they'll need to contact an attorney to provide them with representation. Either way, you'll be taking control of the situation and doing what is necessary to get proper compensation for your injuries.
Speaking with a personal injury attorney in your area will allow you to understand your proper measure of damages. Most, if not all injury attorneys will agree to consult with you for free and will take your case on a contingency basis, never charging you an hourly fee.
I am available to speak with you about your options, should you desire to give me a call.
Disclaimer: This does not constitute legal advice. No attorney-client relationship has been formed through this answer.
I agree with my colleagues - sue him and his girlfriend. However, keep in mind that if they do not have insurance and you win a judgment you may never collect the judgment. Winning a judgment and collecting a judgment are two entirely different things.
You should speak with a local attorney for guidance.
If we do not have a signed fee agreement I am not your attorney and this is not legal advice.
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