Jeffrey M. Marosz
Dallas, TX
214.210.2420 Direct
214.210.2500 Facsimile
Assistant(s): Elizabeth Gallegos |  Alicia D. Greene
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Jeff Marosz is a partner in the Dallas office of DeHay & Elliston. He joined the firm in 1998 and practices in the area of mass toxic tort defense. In addition to his practice, he has handled cases with the Dallas Volunteer Attorney Program involving estate planning and guardianship issues.

Mr. Marosz has over 20 years of experience defending some of the nations prominent petrochemical and manufacturing companies. He has particular experience in defending premises owners and product manufacturers in asbestos expsoure cases.

Mr. Marosz graduated from the University of Dayton with a business degree in accounting and communication. He received his law degree from the Western Michigan University, Cooley Law School. During law school, Mr. Marosz handled cases as a legal intern through the Sixty Plus Elder Law Clinic. He also served as the student President for the clinic.


Mr. Marosz was named as one of D Magazine's Best Lawyers in Dallas 2019, 2020, 2022 and 2023
Mr Marosz was named in the Texas Monthly and Law & Politics Texas SuperLawyer – Rising Star Edition in 2009
Mr. Marosz was nominated and selected for the Who’s who Among American Law Students in 1996

Bar Admissions

Texas 1997
Illinois  2017
U.S. District Court, Northern District of Texas, 1999
U.S. District Court, Eastern District of Texas, 2001


University of Dayton, 1993
Western Michigan University, Cooley Law School 1996

Associations & Memberships

Dallas Bar Association
Texas Bar Association
Illinois Bar Association


St. Thomas Aquinas Catholic Church
Knights of Columbus



"Plaintiff Depositions: Exposure Issues" - CLE DeHay & Elliston, 2021

"Defending Post OSHA Cases" - Defense Asbestos Litigation Seminar (DALS), 2021