You do not have to hire a lawyer to file a notice of claim for any kind of accident with the CTA, whether it involves a bus accident, el train accident, slip-and-fall accident, or any other kind of accident involving the CTA. The CTA is required to notify you of the notice of claim requirements and provide you with an explanation of how to complete the notice of claim. If you feel comfortable completing the notice of claim on your own, you do not need to hire a lawyer to complete the CTA notice of claim or to file it.However, you do need to keep in mind that if there are any errors in completing the notice of claim with the CTA, that can be grounds for a judge to dismiss your lawsuit for your CTA bus accident. If you have any reservations about your ability to complete the notice of claim or are concerned that you have not completed the form correctly, you should contact an experienced Chicago personal injury lawyer to work on your CTA bus accident case.