The caption on the question seems to imply this was in a public school; if so, damages are capped by statute at 100k and there is no interest accruing during the pendency of a case. The more significant issues included that there is a requirement for a presentation of a claim in a certain legalistic presentation within two years to a very precise recipient on the public school administration. There are also many defenses, also by statute, that make it more difficult for your son to recover than...
You are entitled to much more information. The owner almost certainly has insurance coverage and with it some medical payments coverage to pay a customer's medical bills. I would say, let the owner handle it. Information is too limited at this time. See a lawyer if anything developes.
You as a practical matter are not likely to have a claim. In fact, you are lucky that he did not assualt you (he sounds a little nutty); this is one of those life issues that we alll experience and then let it go knowing an issue could have escalated. the law is to compensate the injured for their damages caused by the wrongful act of another.
If you were injured, you have a case. The ticket does not mean anything substantial except it becomes a talking point for the insurer to resist your bodily injury claim. It is not admissible in court in your case. You won; it does not exist anymore but it should have had little impact. The other driver sounds culpable. See a good injury lawyer. Be sure to appeal any surcharge against you by your insurer and you should beat that too.
The culprit is obvious. If that driver has plenty of coverage, you and your passengers are in good shape legally. If not, an experienced personal injury lawyer will help determining the liability of the other drivers and look for underinsured insurance coverage on your policy or the policy insuring the car you were driving . Underinsured for each of your passengers may go to their own vehicles too if they have insured vehicles.
Hopefully your wife will have good union of the fracture and a successfully medical outcome. Her case of malpractice would disappear for that reason. It is, however, very premature to think that a ten day gap from accident to diagnosis leads to a med mal case. That may actually be within the standard of care and may have led to no harm. The claim against the City is capped at 5k in Mass.
The law provides that parents are only liable under certain circumstances for "proved loss or damage" and the traditional rule or understanding is that it would include the value of stolen items, not not stolen or recovered items. Attorneys fees for the store to assert a claim against you or your child are not a "proved loss or damage." I recommend that you ignore that attorney and focus your effort on your son vis-a-vis the criminal action, if any, initiated by the police or the store.
All, certainly most, states have Guarantee Funds that step into the shoes of your or the adverse insurer in case of a failure. Your problem appears to be that you need to find an experienced personal injury lawyer in your community. Ask your current lawyer to forward the case to such a lawyer and then check to make sure the other lawyer is qualified and you are comfortable with him or her. Your current lawyer and the new one can work out a shared fee arrangement.
Attorney Robert H. Flynn