About Nicholas
Nicholas Klingensmith built his legal foundation at Salmon P. Chase College of Law at Northern Kentucky University, earning his J.D. in 2005 after completing a B.B.A. in Information Systems at the University of Cincinnati in 1999. His academic background combined technical training with legal study, a pairing that shaped his early approach to legal research and case preparation.
He began his career as a law clerk in 2005 at the Hamilton County Court of Common Pleas. The clerkship exposed him to courtroom procedure and written opinion work. A few years later he moved into public service. In 2009 he served as a prosecutor for the City of Cincinnati, where he handled caseloads typical of municipal prosecution and gained courtroom experience from the government side.
Klingensmith shifted to private practice in 2012, operating as "Nicholas Klingensmith, Lawyer at Law." That period marked his transition into client representation and the daily management of a private practice. In 2019 he joined as partner at Treleven & Klingensmith. The firm listing reflects his role in a small-practice environment and his continued presence in Ohio courts.
He is a current member of the Ohio State Bar and is licensed to practice in Ohio. His background spans public and private roles, including judicial support work, prosecution, solo practice, and partnership. Those experiences have informed how he prepares cases and how he interacts with courts and opposing counsel.
Colleagues and former clients have seen him work through procedural matters, trial preparation, and courtroom appearances. His career path shows a steady movement from court operations to governmental litigation and then to private client work. He remains based in Ohio and continues to handle matters in state courts.
As of 2026 he serves as a partner at Treleven & Klingensmith and maintains an active Ohio law license. He focuses his current practice on representing clients in Ohio state courts and handling litigation and trial work.
