Irving M. Geslewitz

Irving M. Geslewitz

Chicago, IL


Irv is a "one-stop shop" when it comes to representing and counseling his clients in any matter relating to employment laws and labor relations. A principal in the firm's Labor & Employment group, Irv has extensive experience representing employers and executives on issues or disputes arising out of the employment relationship. He also handles the entire gamut of labor relations issues that confront management in a unionized setting. His experience ranges from reviewing and helping prepare employment contracts, policies and manuals to representing clients in employment-related litigation in state and federal courts as well as before administrative agencies.

Drawing on his years of experience as a trial attorney, Irv regularly counsels employers on the preventive measures they can take to reduce their exposure to litigation. But when avoiding litigation is not an option, Irv has broad experience defending employers sued for employment discrimination under Title VII, the Age Discrimination in Employment Act, the Americans with Disabilities Act, the Family and Medical Leave Act and the various state and local fair employment practices laws. He has also defended many retaliatory and wrongful discharge actions, as well as housing discrimination claims brought against property owners or managers. 

Irv also handles a wide range of employment-related litigation matters concerning non-competition agreements, breach of fiduciary duty claims and trade secrets violations. He litigates lawsuits relating to collective bargaining agreements; single and multi-employer pension and health and welfare funds (including claims of delinquent contributions and withdrawal liability); sexual harassment lawsuits; and breach of employment contract suits, including compensation, commission, bonus and severance pay claims. He also has broad experience in arbitration and mediation, including representing employers in arbitration of union grievances.

In the statutory and administrative law arenas, Irv has handled scores of unfair labor practice and representation (union election) proceedings before the NLRB, including challenging NLRB decisions in the appellate courts. He represents employers in investigations by the Department of Labor and defends against wage and hour class or collective action lawsuits alleging minimum wage and overtime violations or violations of the state wage payment laws. His other substantive experience includes responding to OSHA claims, unemployment compensation issues, and investigations by the EEOC and local fair employment practice agencies regarding charges of discrimination. 

Irv frequently counsels management on the proper response to union organization campaigns; union picketing, boycotts, or strikes; and other union job actions. He also has extensive experience in negotiating collective bargaining agreements. On the non-union side, Irv has significant experience drafting or revising executive employment, termination and trade secret agreements. He counsels clients about compliance with the WARN Act (plant closing law). He helps clients develop employment policies and procedures, including sexual harassment policies and procedures; drug and alcohol policies; employee handbooks; and other types of personnel materials. Irv has also performed labor and employment benefits due diligence on both the buy and sell side of mergers and acquisitions.
Irv also counsels employers in understanding and adapting to the requirements of the Affordable Care Act (Obamacare). 

Irv speaks frequently on a wide variety of employment law topics at seminars for industry, trade and professional groups, as well as continuing education organizations and academic institutions. He has also prepared articles for a number of professional journals, including Practical Lawyer, the Commercial Law Bulletin and the Labor Law Journal.



University of Chicago Law School
J.D., 1976
Rutgers University, New Brunswick
B.A., 1972, Highest Honors, Phi Beta Kappa

Bar Admissions


Court Admissions

U.S. Court of Appeals for the Fourth Circuit
U.S. Court of Appeals for the Seventh Circuit
U.S. Court of Appeals for the Eleventh Circuit
U.S. Court of Appeals for the District of Columbia Circuit
U.S. Supreme Court

Professional Organizations

  • American Bar Association, Section of Labor Law and Committee on Employee Rights and Responsibilities
  • Illinois State Bar Association 
  • Chicago Bar Association 

Insights & Events



  • Leading Lawyers Network, Employment Law: Management and Labor Law: Management, 2003-2022
  • Illinois Super Lawyers, 2006-2022
  • Martindale-Hubbell Law Directory, AV Preeminent®
Leading Lawyers
Super Lawyers
Martindale-Hubbell Attorney - Peer rated for the highest excellence.