Eugene E. Endress

200 West Madison Street
Suite 2700
Chicago, Illinois 60606

Primary Practices

Eugene E. Endress focuses his practice on commercial and construction litigation, including breach of contract, fraud, business torts, trade secret, consumer class action, antitrust, bankruptcy, collections, commercial and equipment lease/loan enforcement, intellectual property and other matters. Gene has extensive experience with all phases of civil litigation, including pleadings, fact and expert discovery, motion practice, trial practice, and appeals.

Gene also has substantial experience in mediation and arbitration, and in counseling and advising clients regarding potential litigation matters. He has represented clients in the commercial banking, real estate finance, pharmaceuticals, construction, energy, food and beverage, furniture, fashion, technology, software, telecommunications, and media/ entertainment industries.

Having worked in-house at Illini Precast as an estimator, Gene brings key business insight to his clients by working with engineering, manufacturing, project management and subcontractor teams.

Professional History

  • Partner, Hahn Loeser & Parks, 2022-present; Associate, 2019-2022
  • Estimator, Illini Precast, LLC, 2018-2019
  • Associate, Hahn Loeser & Parks LLP, 2017-2018
  • Associate, Katten Muchin Rosenman LLP, 2012-17
  • Law Clerk, The Honorable James C. Murray, Jr., Circuit Court of Cook County, 2011



Vanderbilt University Law School, J.D., 2011


University of Illinois at Urbana-Champaign, B.S., Finance with high honors and B.A., Philosophy, 2008

Awards & Distinctions

Ones to Watch, Best Lawyers®, Commercial Litigation, 2021-22


Rising Star, Illinois Super Lawyers®, 2016-18, 2021


Chicago Volunteer Legal Services Pro Bono Honoree, 2016

Bar Admissions

State of Illinois, 2011