While you aren’t legally required to hire an attorney to file a personal injury lawsuit, your case is unlikely to be successful without an experienced lawyer representing your interests. Every personal injury case has unique circumstances, and a comprehensive understanding of the law is critical in order to obtain a positive outcome.
Since you can receive legal representation on a contingency fee basis (you don’t pay anything unless the law firm wins your case), there’s little to lose and much to gain by hiring a personal injury attorney.