If someone was hurt in another state, typically speaking you will need to find an attorney in the state the person got hurt in. The courts in the state where the injury occurred typically have what is known as jurisdiction to hear the case should the matter require litigation.
Even if the claim does not require litigation, it is the laws of the state where the crash or collision occurred that will control the matter.
I hope this helps answer your question, if you need more details I recommend you reach out to a personal injury attorney in the state where your child was injured and speak with a few. Make sure you are comfortable with whomever you eventually retain. You will be dealing from out of state and can not just schedule an appointment and pop in. So comfort is the most important aspect of your representation.
Ty Wilson is a Georgia personal injury attorney who practices law in Savannah and Atlanta, Georgia.