Biography
Mr. Ditelberg is a Partner engaged in a broad-based labor and employment practice. His practice includes a particular focus on labor relations and the employment-related aspects of corporate transactions, business restructuring, and workforce reductions.
Mr. Ditelberg is Co-Chair of the Firm’s Business Restructuring and Transactional Employment (BRTE) Group. The BRTE Group is devoted to managing labor and employment issues arising from corporate mergers, acquisitions, and divestitures; subcontracting and outsourcing; workforce reductions; facility closings, relocations and consolidations; corporate reorganizations; bankruptcy; and ESOPs. The BRTE Group’s goal is to achieve clients’ business objectives by minimizing legal risk and creating significant economic value, e.g., through transaction planning and negotiations, due diligence, workforce analyses, and pre- and post-closing human resources management.
Mr. Ditelberg practiced labor and employment law in Boston before joining Seyfarth Shaw LLP. Prior to entering private practice, Mr. Ditelberg served as a law clerk to Judge Ralph B. Guy, Jr. of the United States Court of Appeals for the Sixth Circuit, and to Associate Justice Joseph R. Weisberger of the Supreme Court of Rhode Island.
Mr. Ditelberg is the President of the Chicago Chapter of the Labor and Employment Relations Association, a leading professional organization in the fields of industrial relations and human resources management. He has been selected as a Leading Lawyer by the Leading Lawyers Network and an Illinois Super Lawyer by Law & Politics, designations awarded to the top 5% of attorneys in Illinois.Education
J.D., University of Michigan, magna cum laude (1991)
Order of the Coif
M.A., University of Pennsylvania, with honors (1987)
B.A., University of Pennsylvania, summa cum laude (1987)
Phi Beta Kappa
Admissions
- District of Columbia
- Illinois
- Massachusetts
Courts
- U.S. Court of Appeals for the First, Sixth, Seventh, Eighth, Ninth, and District of Columbia Circuits
- U.S. District Court for the Northern and Southern Districts of Illinois
- U.S. District Court for the District of Massachusetts
The Supreme Court of Illinois does not recognize certifications of specialties in the practice of law and no certificate, award or recognition is a requirement to practice law in Illinois.

