Thomas W. Sidlinger


Phone Number: 816-701-7421

4740 Grand Avenue Suite 300
Kansas City, MO 64112

In Brief

Experience working on national class actions or MDLs

Works for victims of harmful products and fights commercial fraud

Thomas Sidlinger concentrates on working for victims of harmful products and fighting commercial fraud. He investigates corporate wrongdoing by pharmaceutical, credit card, and healthcare companies. Thomas uses his previous experience representing low-income families to inform his work on consumer protection actions.

Thomas typically works on cases national in scale, which are organized either as class actions or multi-district litigation. His experience litigating at municipal, state, and federal levels helps him identify and develop useful evidence. He helps prepare partners at Wagstaff & Cartmell for depositions, pleadings, and other work vital to successful client representation.

Notable Litigation

  • In Re: National Prescription Opiate Litigation, MDL 2804 (N.D. Ohio)

    The Wagstaff & Cartmell team is involved in this prescription opiate litigation MDL. Ty Hudson worked with a team of lawyers to help prosecute the case against prescription drug distributors in the initial MDL bellwether cases, which resulted in settlements totaling more than $260 million. The next phase of the litigation is on-going. Eric D. Barton is representing dozens of county and c

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Practice Areas

Other Practice Areas

  • Consumer Fraud
  • Products Liability
  • Corporate Whistleblower Claims


  • J.D., University of Kansas School of Law, 2016
  • B.S., Kansas State University
    • Summa cum laude