Livingstone, Mueller, O'Brien & Davlin, P.C
Illinois Workers' Compensation & Civil Litigation
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Dennis O'Brien

Bar Admissions:
United States District Court for the Central District of Illinois 

Loyola University of Chicago, Chicago, Illinois, J.D.
Dominican University, River Forest, Illinois, B.A. 

Areas of Practice:
Workers’ Compensation
Personal Injury Litigation
Employer’s Liability/Contribution           

Representative Cases:
White vs. Illinois Workers' Compensation Commission, 374 Ill. App. 3d 907, 873 N.E.2d 388 (2007)

  • The appellate court affirmed the denial of the claim due to the employee’s failure to provide proper notice.

Hatfill vs. Industrial Commission, 202 Ill. App. 3d 547, 560 N.E.2d 369 (1990)

  • The employee’s claim for benefits was denied because the employee engaged in a dangerous act for his own personal benefit. This denial was affirmed by the appellate court.

Horath vs. Industrial Commission, 96 Ill.2d 349, 449 N.E.2d 1345 (1983)

  • The Illinois Supreme Court held that the Illinois Workers’ Compensation Commission does not have to accept the opinion of a physician when that physician's opinion is based on an incorrect or incomplete history from the patient.

Professional Associations and Memberships:
Sangamon County Bar Association
Illinois State Bar Association
American Bar Association

Has presented and published more than forty articles in Continuing Legal Education textbooks including:

The Proper Use of Medical Records and Reports, The Trial of a Workers' Compensation Case and Beyond, Illinois State Bar Association Law Ed Series, 1990

Second Injury Fund and Rate Adjustment Fund Cases, Advanced Workers' Compensation in Illinois, National Business Institute, 1991, 1993, 1994

Workers' Compensation - Practical Approach to the Difficult Cases, Illinois State Bar Association Law Ed Series, Bloomington, Illinois, March 17, 1989

After the Arbitration – Preparing the Proposed Decision for the Arbitrator, Workers’ Compensation Seminar 2004, Illinois Institute for Continuing Legal Education, 2004

Civility During Depositions; Resolving Problems; Ethical Considerations, Starting Points!  Taking Your First Doctor’s Deposition, Illinois Institute for Continuing Legal Education, 2007

Medical Deposition Preparation, (with Timothy Shay and Dr. Scott Kale) Starting Points! Filing and Responding to a Workers’ Compensation Claim, Illinois Institute for Continuing Legal Education, 2008

Wage Loss, (with Jean Swee and David Barasch), Advanced Workers’ Compensation: Trial Practice Under the New Act, Illinois Institute for Continuing Legal Education, 2012

Avoiding Ethical Obstacles, Workers’ Compensation Hearings: Techniques and Strategies for Success, National Business Institute, 2013

The Ethical Use of Social Media, Workers’ Compensation Institute, Illinois Institute for Continuing Legal Education, 2014