Christa D. Wittenberg

Tel | 414.276.5000




  • University of Michigan Law School  (magna cum laude)
  • University of Wisconsin–Madison (B.A., with honors)

Christa D. Wittenberg

Attention to Detail

Christa assists businesses and individuals with prosecuting and defending a variety of civil litigation matters. As a former federal district court law clerk, Christa is intimately familiar with litigation and procedures in federal court. She has also litigated matters in state courts in Wisconsin and Illinois and resolved cases through mediation and arbitration. Christa especially enjoys tackling challenging issues in trial courts and appellate courts, such as disputes involving personal and subject-matter jurisdiction, contract formation and enforcement, and nuances of procedural and evidentiary rules.

Christa Assists Clients With

  • Complex contract disputes
  • Indemnification claims
  • Healthcare litigation
  • Trademark and copyright infringement claims
  • Shareholder disputes
  • Debt collection practices and consumer protection claims
  • Class action and whistleblower litigation
  • Inheritance disputes
  • Personal injury cases
  • Fraud and conspiracy claims
  • Federal and state lawsuits
  • Mediations and arbitrations

Experience/Representative Client Work

  • Judicial Law Clerk for the Honorable Joe B. McDade, U.S. District Court for the Central District of Illinois, 2012–2014

Examples of Recent Cases

  • Successfully represented multiple financial services companies and other businesses against Fair Debt Collection Practices Act and Wisconsin Consumer Act claims for debt collection activities, including putative class action claims, in the Eastern District of Wisconsin and in Wisconsin state courts.
  • Assisted in obtaining dismissal of breach of contract and promissory estoppel claims against construction subcontract bidder in connection with the construction of a downtown Milwaukee high-rise office building on summary judgment, affirmed on appeal. C.G. Schmidt Inc. v. Permasteelisa N. Am., 825 F.3d 801 (7th Cir. 2016).
  • Successfully represented clients in certified class action alleging that health plan administrators breached fiduciary duties by failing to administer health claims in a manner consistent with employee health plan language covering “usual, customary and reasonable” charges for out-of-network services in George v. CNH Health & Wealth Benefit Plan, et al., No 16-CV-1678-JPS (Eastern District of Wisconsin).
  • Successfully obtained summary judgment ruling in dispute between former business partners over trademark use and alleged fraud, breach of fiduciary duty, and defamation in EastStar Solutions, Ltd., v. Owens, No. 16-CV-1551 (Eastern District of Wisconsin).
  • Successfully represented small business pursuing claim against financial advisors for recommendation of ineffective tax strategy.
  • Successfully represented employer by obtaining early dismissal of false imprisonment and intentional infliction of emotional distress claims by disgruntled former employee.
  • Successfully represented numerous clients in personal injury matters, both through pre-suit settlements and through litigation.

Professional Associations & Affiliations

  • State Bar of Wisconsin
  • American Bar Association
  • Eastern District of Wisconsin Bar Association, Newsletter Committee Co-Chair
  • Milwaukee Bar Association
  • Association for Women Lawyers, Director of Professionalism

Court Admissions

  • Wisconsin
  • Illinois
  • United States Court of Appeals for the Seventh Circuit
  • United States District Court for the Eastern District of Wisconsin
  • United States District Court for the Western District of Wisconsin
  • United States District Court for the Central District of Illinois


  • Selected for inclusion on The Best Lawyers in America: Ones to Watch list, 2021–2022
  • Selected for inclusion in 2020 and 2021 Wisconsin Super Lawyers Rising Stars, Law & Politics and Milwaukee Magazine
  • Order of the Coif, honorary scholastic society for law students
  • Phi Beta Kappa, academic honor society for undergraduates
  • Certificate of Merit awards for highest grade in class in Contracts and Evidence courses at University of Michigan Law School
  • Production Editor, Michigan Journal of Race & Law, 2011–2012
  • Executive Editor, Michigan Journal of Environmental & Administrative Law, 2011–2012


  • Panelist, “Due Process Uncertainty While Confronting a Measles Outbreak,” State Bar of Wisconsin PINNACLE Seminar “Annual Constitutional Law Symposium 2019,” December 2019
  • Co-Author, “When Measles Meets Due Process,” Wisconsin Lawyer, November 2019
  • Speaker, “Best Practices for Using Emails at Depositions,” O’Neil, Cannon, Hollman, DeJong & Laing S.C., August 2019
  • Speaker, “Freedom from Litigation: Personal Jurisdiction and Sovereign Immunity,” State Bar of Wisconsin PINNACLE Seminar “Annual Constitutional Law Symposium 2018,” December 2018
  • Speaker, “Precision v. Concision: Can You Have it All?,” State Bar of Wisconsin PINNACLE Seminar “Know Your Writes:  Next Level Legal Writing,” May 2017
  • Speaker, “Regulation of Abortion Providers and the Impact of Whole Woman’s Health v. Hellerstedt,” State Bar of Wisconsin PINNACLE Seminar “With Liberty & Justice: A Constitutional Law Symposium,” December 2016
  • Author, “Testamentary Capacity: A Sliding-Scale Approach,” Wisconsin Lawyer, September 2016
  • Speaker, “The Impact of Judicial Law Clerks and Staff on State and Federal Court Proceedings,” O’Neil, Cannon, Hollman, DeJong & Laing, Hot Topics for Small Firm and Solo Practitioners seminar, October 2015
  • Author, “The Constitutional Framework for Public Health Responses to Disease Outbreaks,” Health Law Litigation, American Bar Association Section of Litigation, Health Law Litigation Committee Newsletter, Spring 2015
  • Co-Presenter, “Post-Trial Motions in Federal Court,” Peoria County Bar Association’s Federal Practice Seminar, July 2013

Community Involvement

  • Member of Communications Committee of State Bar of Wisconsin
  • Board of Directors for LOTUS Legal Clinic
  • Volunteer Attorney at Milwaukee Justice Center
  • Volunteer at Project Concern of Cudahy–St. Francis food pantry
  • Mock trial judge for Wisconsin High School Mock Trial
  • Member of St. Mark’s Lutheran Church in Cudahy, Wisconsin

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