Katelyn E.Nicasio


シカゴ + 1.312.269.1549

Katelyn Nicasio represents employers in a variety of labor and employment matters, including sex discrimination and sexual harassment class actions under Title VII, Illinois Biometric Information Privacy Act (BIPA) class actions, and actions under the Illinois Wage Payment and Collection Act. She also has experience conducting internal investigations and counseling clients on compliance with Illinois state wage and hour laws. Katelyn has experience researching, drafting pleadings and motions, handling offensive and defensive discovery, and preparing for depositions.

Katelyn maintains an active pro bono practice, representing clients seeking asylum through the Firm's Border Project.

While in law school, Katelyn served as a teaching assistant for the Graduate Legal Studies Program at the Indiana University Maurer School of Law and taught legal research and writing seminars. She was also a member of the Latinx Law Students Association.


  • Venezuelan political refugees secure asylum in Orlando Immigration CourtJones Day successfully represented a Venezuelan couple and their minor children before the Orlando Immigration Court, securing asylum for the family on the basis of past persecution suffered on account of their political opinions.
  • Coalition of railroads achieve successful results in national collective bargainingJones Day was counsel for the U.S. railroad industry in one of the largest and most consequential labor matters of 2022, helping to avoid threatened work stoppages by 100,000 workers that would have gravely imperilled the U.S. economy and drew the personal attention of President Biden.
  • McDonald’s wins summary judgment in Title VII class action matterJones Day won summary judgment for McDonald’s in a class action against McDonald’s Corporation, McDonald’s USA, and franchisee defendants alleging systemic sexual harassment under Title VII and the Michigan Elliot-Larsen Civil Rights Act on behalf of a class of over 100 women employees at franchisee’s restaurant based on joint employer, agency and apparent agency theories of liability.
  • Global pharmaceutical client wins ICC arbitration arising from collaboration disputeJones Day successfully defended a multinational, pharmaceutical client against a $300-plus million breach-of-contract claim arising from a collaboration agreement and that alleged among other things a failure to use commercially reasonable efforts.
  • PolyOne completes $650 million Senior Notes offeringJones Day represented PolyOne Corporation, a premier provider of specialized polymer materials, services and sustainable solutions, in connection with a Rule 144A and Regulation S offering of $650 million aggregate principal amount of 5.750% Senior Notes due 2025.