One of the most important document you need is the police or accident report. The following are a few of the on-line places to obtain these reports.
Ohio State Highway Patrol. http://www.state.oh.us/ohiostatepatrol/crash.htm
Lima Police Department. http://www2.wcoil.com/~lpd/records/records.htm
Shawnee Township - Must write or call requesting records. (419) 227-3211
Allen County Sheriff - Must Call (419) 227-3535