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William Denning, Denning Law Firm

Staff Report//June 11, 2026//

William Denning

William Denning, Denning Law Firm

Staff Report//June 11, 2026//

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Overland Park, KS

William Denning built his practice over a career that began with 15 years in insurance defense before pivoting to civil rights and personal injury litigation, a shift driven by his daughter, who now practices alongside him.

He is best known for his client advocacy paired with respect and courtesy toward opposing counsel. Denning noted he has mentored young attorneys by “taking them to their first depositions, mediations or even their first trial,” many of whom now work at prominent Kansas City firms or lead their own practices.

He is a member of the Missouri Bar, the Kansas Bar, the Kansas City Metropolitan Bar Association and the Johnson County Bar Association.


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