Katherine defends companies in business and employment litigation matters nationwide. She has won defense verdicts in jury-tried cases claiming retaliation, gender, disability and race discrimination and obtained numerous summary judgments for her clients. Katherine routinely defends complex, multi-plaintiff actions involving wage and hour compliance and the Fair Credit Reporting Act, and she has defeated class certification for clients facing mass actions in California, Florida, Illinois, Missouri, New York, Pennsylvania and Texas. Katherine spent seven years as the lead attorney coordinating the defense of multiple wage and hour class actions consolidated by the JPML. Additionally, she handles cases alleging harassment, age, disability, race, national origin, religious discrimination, breach of contract, negligence and claims involving the FMLA. Katherine is known for thinking “outside the box” when structuring settlements for her clients and her effective negotiation skills have brokered countless favorable out-of-court resolutions. Katherine is formally trained in dispute resolution and has fulfilled the mediation training requirements of the Missouri and Kansas Supreme Court rules. Katherine is approved as a mediator for the Mediation and Assessment Program of the U.S. District Court for the Western District of Missouri. In 2014, KC Business named Katherine among Kansas City’s most “Influential Women.”

In addition to her successful practice representing corporate clients, Katherine regularly serves her community by finalizing adoptions of foster care children, having finalized the adoptions of more than 50 children pro bono. Katherine has also served as president of the Angel Board of The Children's Place, a non-profit organization devoted to meeting the developmental needs of young survivors of abuse, neglect and other trauma within the Kansas City community.

Publications and Presentations

Presenter, LGBT Employees and Title VII: The Supreme Court Showdown and Legal Landscape, SHRM Employment Law and Employee Benefits Conference, Topeka, Kansas, February 25, 2020.

Presenter, Civility in the Legal Profession - in the Courtroom and Online, Shook, Hardy & Bacon's Update of the Law CLE, Kansas City, Missouri, June 23, 2016.

Presenter, The Plaintiff’s Deposition, Missouri Bar Employment CLE, June 26, 2015.

Presenter, Trends in Employment Litigation, Shook, Hardy & Bacon's Colorado Litigation Roundtable CLE, Denver, Colorado, June 6, 2015.

Presenter, The Future of Employment Law, Kansas Bar Association CLE, October 2013.

Contributing Author, Strategies for Employment Class and Collective Actions: Leading Lawyers on Addressing Trends in Wage and Hour Allegations and Defending Employers in Class Action Litigation, Inside the Minds (2012 Thomson Reuters/Aspatore).

Katherine Sinatra & Greg Wu, Big Picture National Employment Class Action Litigation in the Post Dukes v. Wal-Mart Era – Understanding the Challenges and Reducing the Risk, Shook, Hardy & Bacon's Corporate Counsel Institute, Kansas City, Missouri, April 17, 2012.

William C. Martucci & Katherine R. Sinatra, Blogging and Social Networking: The Emerging Legal Framework for National Employers, 36:2 Employment Relations Today, Summer 2009, at 73. 

William C. Martucci & Katherine R. Sinatra, Antibullying Legislation - A Growing Trend in the New Workplace, 35:4 Employment Relations Today, Winter 2009, at 77.

William C. Martucci & Katherine R. Sinatra, Family Military Leave - A Growing National Trend for Employees with Active-Duty Family Members, 35:2 Employment Relations Today, Summer 2008, at 69. 

William C. Martucci & Katherine R. Sinatra, Caregivers in the Workplace: Prohibitions Against Family-Responsibility Discrimination, 34:4 Employment Relations Today, Winter 2008, at 71. 

Contributing Author, Missouri Employment Law and Practice, Missouri Practice Series (Thomson/West, 2007 ed.).

Katherine R. Sinatra, Employer Beware: Missouri Puts the Brakes on Interests Protected by a Restrictive Covenant, 70 UMKC L. Rev. 171 (2001).