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Tanya’s ability to focus on clients’ individual values and goals helps her advocate in a wide range of disputes both in and out of the courtroom.

An experienced litigator, Tanya’s ability to find strategic solutions has resulted in favorable outcomes in uncertain, business-critical situations. She endeavors to find the most efficient and effective resolutions for small and large clients alike. Tanya’s counsel attempts to minimize the disruptions of litigation so clients can remain focused on their own business priorities.

Tanya has experience in all stages of litigation, from initial pleadings to negotiations to trial strategy. She manages the day-to-day operations of complex cases and all aspects of discovery, including eDiscovery. Tanya offers guidance to numerous healthcare clients, including healthcare providers, pharmacy benefit managers, nursing homes, practitioners and hospitals. Tanya also defends business and commercial clients in high-stakes cases throughout the country. She has represented clients in contractual disputes, business torts, consumer fraud disputes and injunctive proceedings. In addition, Tanya handles pro bono matters including guardianship actions for minors and adults, and has argued before the Missouri Court of Appeals. Before joining the firm, she worked as a policy specialist at the Missouri Coalition for Community Behavioral Healthcare.




  • Missouri Lawyers Weekly, 2018 Up & Coming Lawyer
  • Association of Corporate Counsel, Value Champion, 2017
  • Land of Lincoln Legal Assistance Foundation, Pro Bono Award, 2015
  • Missouri & Kansas Super Lawyers, Health Care, Rising Star, 2014-2020
  • Missouri Bar Pro Bono Wall of Fame, 2012-2014


  • J.D., University of Missouri School of Law
    • magna cum laude
    • Board of Advocates, Judging Director
    • CALI Excellence for the Future Award in Civil Procedure and Estates & Trusts
    • Fred L. Howard Award for Excellence in Advocacy
    • Missouri Law Review, Associate Managing Editor
    • Order of the Barristers
    • Order of the Coif
    • William M. Howard Award in Legal Research and Writing
  • M.P.A., University of Missouri Harry S Truman School of Public Affairs
    • Pi Alpha Alpha Honor Society
  • B.A., Truman State University
    • Political Science
    • cum laude


  • Missouri
  • U.S. District Court, Eastern District of Missouri
  • Illinois

Professional Memberships and Certifications

  • American Health Law Association
  • The Bar Association of Metropolitan St. Louis
  • Illinois State Bar Association
  • The Missouri Bar
  • The Women Lawyers’ Association of Greater St. Louis
Featured Experience

Jury Returns Complete Defense Verdict in Wrongful Death Lawsuit Against Anesthesia Provider

The children of a patient who died during surgery brought a wrongful death lawsuit against a hospital and the anesthesia provider. Plaintiffs alleged that the certified registered nurse anesthetist was improperly monitoring the patient during surgery and her negligence led to the patient’s death. The hospital was later dismissed from the action. Tanya and the team defended the anesthesia provider in a week-long jury trial, putting on witnesses and experts to refute the allegations. The jury returned a complete defense verdict.

Additional Experience


  • Procured favorable settlement when audit revealed pharmacy engaged in numerous business practices that violated its provider agreement with pharmacy benefits manager. Parties agreed to resolve dispute, and client secured consent judgment for full outstanding balance plus interest as security if pharmacy defaults on its payment obligations.
  • Won arbitration award for pharmacy benefits manager in action to recover money for fraudulent claims submitted by pharmacy.
  • Achieved full dismissal of mail order pharmacy from case alleging improper dispensing of prescription drugs based on admissions obtained during doctor's deposition.
  • Defeated former network pharmacy's request for preliminary injunctive relief that would have forced client to recontract with pharmacy after client learned that pharmacy's actions knowingly breached contract.

Commercial Disputes

  • Negotiated favorable settlement and legal fees for international packaging company in federal court involving claims of breach of contract, unjust enrichment and declaratory judgment action.
  • Secured favorable resolution for commercial client in litigation involving a post-closing dispute concerning a multimillion-dollar asset purchase agreement.
  • Obtained favorable resolution for business client in litigation stemming from former member's misuse of company information.


  • Secured significant win from the Missouri Supreme Court affirming state law that barred eminent domain condemnations “for solely economic development purposes.”
  • Obtained summary judgment on behalf of pro bono client in federal civil rights case alleging client and other defendants failed to train, monitor and supervise police officer who engaged in activities that violated plaintiffs' civil rights. Client was dismissed on basis of quasi-judicial immunity and on the merits before a trial that resulted in multimillion-dollar verdict against remaining parties.
News Releases | December 19, 2019
Husch Blackwell Welcomes 22 New Partners

Nearly 60 percent of the firm's 2020 partnership class is comprised of women.

News Releases | November 14, 2018
Thomson Reuters' Missouri & Kansas Super Lawyers and Rising Stars 2018 Names 58 Husch Blackwell Attorneys

Husch Blackwell has 58 attorneys in the 2018 edition of Missouri & Kansas Super Lawyers and Rising Stars.

Media Mentions | October 23, 2018
Missouri Lawyers Weekly Up & Coming Honorees: Tanya M. Maerz

Tanya Maerz is profiled in Missouri Lawyers Weekly's Up & Coming 2018 special section.

Outside the Office

Tanya enjoys spending time with family and learning new skills.

Tanya spends most of her time outside the office with her husband and two young children exploring St. Louis. As a native of Chicago, Tanya enjoys learning more about the beautiful city she now calls home. Tanya is an avid (yet amateur) baker and her family is especially fond of her banana bread. The family also hikes local trails and often brings their dog, an 80-pound Aussie/lab rescue who thinks she’s a lap dog.

Community Leadership
  • Griffiths Leadership Society for Women
  • Homeowners Association, Board of Trustees
  • Ready Readers

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