As soon after your accident as possible. A prompt visit with an attorney is important for several reasons. Some cases require immediate investigation in order to preserve evidence such as photographs, witness statements, road measurements, vehicle data. The opposing party’s insurer will almost always have an investigator looking into the facts and you too should have someone on your side. Also, your claim must be filed within certain time limits or it will be terminated. There are various time limits for certain personal injury actions, and thus, only an attorney can explain the limitations applicable to your specific case. Unless other factors are present, a negligence action in Illinis generally must be filed within two years of your injury. There are however some times such as when a governmental entity is involved that a shorter limitations period may apply.