The owner of the property where your son was injured is liable for your son's injuries based on premises liability.  Your son's personal injury claim should be filed with the property owner's insurance carrier.When your son completes his medical treatment and is released by the doctor or is declared by the doctor to be permanent and stationary which means having reached a point in his medical treatment where no further improvement is anticipated, obtain your son's medical bills, medical reports and if applicable documentation of any wage loss.  Your son's personal injury claim filed with the property owner's insurance carrier should include these items.  Compensation for the medical bills is straight reimbursement.  Compensation for wage loss is straight reimbursement.  The medical reports will document the nature and extent of your son's injuries and will be used to determine compensation for pain and suffering which is an amount in addition to the medical bills.  If the case is settled with the property owner's insurance carrier, NO lawsuit is filed.  If you are dissatisfied with settlement offers from the property owner's insurance carrier, reject the settlement offers and file a lawsuit against the property owner based on premises liability.  You will need to be appointed guardian ad litem to file a lawsuit on behalf of your son because a minor cannot file a lawsuit himself.  If the case is NOT settled with the property owner's insurance carrier, your son's lawsuit will need to be filed prior to the expiration of the applicable statute of limitations or your son will lose his rights forever in the matter.