Michael L. Blumenthal

Michael L. Blumenthal is an attorney at Seyferth Blumenthal & Harris LLC in Kansas City, Missouri, where he represents management in workplace disputes and businesses in high-stakes litigation. His practice includes employment litigation, trade secret and non-compete enforcement, human resources counseling, and policy development. Blumenthal also advises executives on employment agreements, retention arrangements, separation terms, compensation structures, restrictive covenants, and related workplace issues.

Blumenthal earned a B.A. from the University of Kansas in 1989 and a J.D. from the University of Kansas in 1992. In law school, he served as Publications Editor for The Kansas Journal of Law and Public Policy, and as an undergraduate, he received the Hilltopper Award. His academic background supports a practice requiring careful legal analysis, persuasive writing, and practical counseling on complex employment and business disputes.

Blumenthal has defended lawsuits in more than 20 states and has handled significant trials and appeals involving employment, contracts, trade secrets, fiduciary duties, and commercial disputes. In 2025, he and co-counsel obtained a $954,442 jury verdict for a wealth advisory firm in a case involving breach of contract, trade secret, fiduciary duty, and business expectancy claims. He also regularly mediates and arbitrates lawsuits for other attorneys.

Michael L. Blumenthal is a Fellow of the College of Labor and Employment Lawyers and a Master in the Ross T. Roberts Inn of Court. His honors include recognition by Best Lawyers, Benchmark Litigation, Chambers USA, Missouri Lawyers Weekly, and Super Lawyers. Blumenthal is also active in the Kansas City Metropolitan Bar Association, the Society for Human Resource Management, and the American Employment Law Council, reflecting long-standing involvement in employment and business law.

Law Office Affiliations

• Attorney, Seyferth Blumenthal & Harris LLC
• Member, The Missouri Bar
• Member, American Employment Law Council
• Member, Kansas City Metropolitan Bar Association
• Member, Society for Human Resource Management

Licensed State

• Missour

Education

• University of Kansas
  Juris Doctor (JD)
• University of Kansas
  Bachelor of Arts

Awards & Badges