By Your Side
Through It All Reach Out Today
Through It All Reach Out Today
Meet William "Willie" Denning
Founding Member & Lead Trial Attorney at Denning Law Firm, LLC
William "Willie" Denning is the founder of Denning Law Firm, LLC, based in Overland Park, Kansas, and serving clients across the Kansas City metropolitan area in both Kansas and Missouri. With over two decades of legal experience, Willie focuses his practice on personal injury, medical malpractice, catastrophic truck accidents, and wrongful death cases. He is known for combining deep legal knowledge with a family-centered approach to advocacy, practicing alongside his daughter, attorney Paeten Denning.
Professional Credentials & Legal Background
Willie’s practice is grounded in extensive courtroom experience, appellate advocacy, and nearly 15 years of insurance defense work prior to representing plaintiffs.
Years of Experience: Over 20 years practicing law in Kansas and Missouri.
Education: Juris Doctor (J.D., 2003) from the University of Missouri–Kansas City School of Law; Bachelor of Science in Education (B.S. Ed., 1999) from Pittsburg State University.
Academic Honors: Recipient of the John L. Sheridan and Thomas E. Deacy Sr. Awards for outstanding appellate and trial advocacy; member of the National Moot Court and National Trial Team.
Bar & Court Admissions: Admitted to practice in Kansas and Missouri, U.S. District Courts, the 8th and 10th Circuit Courts of Appeals, and the United States Supreme Court.
Recognition & Affiliations: Recipient of the Super Lawyers designation; member of the Kansas Bar Association, The Missouri Bar, and the Kansas City Metropolitan Bar Association.
I'm ready and willing to put my unique perspective and extensive previous experience to work for you.
Professional Journey & The Founding of Denning Law Firm
Before founding Denning Law Firm in 2020, Willie spent nearly 15 years as a partner at a prominent civil defense firm in the Kansas City area. Representing insurance companies and corporate defendants provided him with invaluable insight into how insurers evaluate, negotiate, and defend claims against injured individuals.
Willie established Denning Law Firm, LLC to put that defense insider knowledge to work for plaintiffs, leveling the playing field against large insurance companies. Over his career, he has successfully tried multiple cases to verdict in state and federal courts, including multi-million-dollar outcomes, and has argued cases before the Kansas Supreme Court and the Courts of Appeals in both Kansas and Missouri.
Primary Areas of Focus
Personal Injury & Catastrophic Accidents: Representing individuals injured in car, motorcycle, and commercial trucking accidents.
Medical Malpractice & Professional Liability: Dissecting complex medical records and healthcare standards to hold negligent providers accountable.
Wrongful Death & Civil Rights: Advocating for grieving families in high-stakes wrongful death and police brutality/excessive force claims.
Product & Premises Liability: Holding corporations and property owners responsible for hazardous conditions and defective products.
A Family-Driven Approach to Advocacy
Denning Law Firm operates as a true father-daughter legal team. Paeten Denning grew up attending law school classes alongside her father and now practices by his side. This family orientation shapes how the firm interacts with clients—offering compassionate, accessible support while relentlessly pursuing the compensation families need for medical bills, lost wages, and long-term recovery.
Connect With Denning Law Firm, LLC
If you or a family member has been injured due to negligence in Overland Park, Leawood, Olathe, or anywhere in the Kansas City metro area, professional legal support is available.
Explore Legal Insights: Read Willie's latest articles on Kansas and Missouri personal injury laws on his blog: https://www.denninglawfirm.com/blog/
Schedule a Free Consultation: Contact Denning Law Firm, LLC today at (816) 608-7169 to discuss your case directly with a proven trial attorney.