Leighton Miller is an Attorney at Keller Postman LLC. As a former defense-side litigator, he brings his experience to the service of the firm’s clients and is constantly looking for ways to bring their individual stories out in litigation.

At Keller Postman, Leighton represents clients in product liability matters and is currently supporting the Necrotizing Enterocolitis (NEC)/Infant Formula litigation. Leighton has been involved in all aspects of that litigation from briefing to discovery to strategy.

Before joining Keller Postman, Leighton was a commercial litigation associate at Bryan Cave LLP where he defended financial institutions in state and federal court. After Bryan Cave, Leighton defended attorneys in litigation brought by the Department of Justice as Litigation Counsel at UpRight Law and handled all aspects of pretrial litigation as a defense attorney at Cameli & Hoag, P.C. Through those positions, Leighton gained substantial courtroom experience arguing dispositive motions and by first chairing two federal trials. Leighton’s pro bono work has allowed him to argue twice in the United States Court of Appeals for the Seventh Circuit and to first or second chair three other federal trials.

Prior to law school, Leighton was an operations consultant in the manufacturing sector for a UK-based technology company and then led a team at City Colleges of Chicago that redesigned the academic and career pathways for the community college system.

Leighton graduated cum laude from Loyola University Chicago School of Law, where he served on the Moot Court Board and as Senior Editor of the Loyola Consumer Law Review. He earned his undergraduate degree from Fort Hays State University.

Leighton is licensed to practice law in Illinois only.


"The best part about being a plaintiffs’ attorney is getting to know our clients, understanding their stories, and then taking that appreciation and turning it into energy to fight on their behalf in court against the sort of companies that I used to defend. It is a real honor to be part of leveling the playing field on their behalf. "

Leighton Miller


  • J.D., Loyola University Chicago School of Law
  • B.S., Fort Hays State University

Previous Affiliations

  • Cameli & Hoag, P.C.
  • UpRight Law LLC
  • Bryan Cave LLP
  • City Colleges of Chicago
  • Radius Solutions, Inc.