Born in Springfield, Illinois, February 19, 1969. Peter grew up there and went to Springfield High School. Peter’s family roots are deep in Springfield and central Illinois, a heritage that includes a longstanding presence in the legal community. His great, great Grandfather, John C. Lanphier was a lawyer in private practice at Patton & Lanphier, whose own father, Charles H. Lanphier advised Lincoln rival Stephen A. Douglas as well as serving as the Circuit Clerk of Sangamon County. Today, Peter preserves that tradition in the law at Holley, Rosen and Beard serving clients in a wide range of legal affairs throughout central Illinois.

Peter received his Bachelor of Arts in Political Science from Bradley University in Peoria, Illinois in 1992 and his law degree in 1997 from Southern Illinois University in Carbondale, Illinois. He returned to Springfield after law school working as an Assistant States Attorney in the Sangamon County States Attorney's Office, and then as an Assistant Attorney General for the Illinois Attorney General. Thereafter, Peter joined Holley, Rosen & Beard. Peter practices in many areas of law including personal injury, criminal law, DUI/traffic and driver's license reinstatement cases, and general civil litigation. He is licensed in Illinois; also admitted to practice before U.S. District Court, Southern and Central Districts of Illinois, and U.S. Court of Claims/Vaccine Court.