Mark W. Thomas


Legal Assistant


  • College: Drake University, magna cum laude and Phi Betta Kappa
  • Law School: Creighton University, cum laude


  • States: Iowa and Nebraska
  • Federal Courts: Northern District of Iowa, Southern District of Iowa, 8th Circuit Court of Appeals

Mark Thomas recently obtained a defense verdict in the case of Farley v. Edmonds. Mr. Farley was employed by Ms. Edmonds to trim tree branches overhanging her home. He was severely injured in that process where he fell off the roof and brought suit against the defendant for failure to warn of purportedly defective shingles […]

Mark W. Thomas

Mark Thomas is the managing member of the Grefe Sidney Litigation Division where he has tried well over 200 cases to verdict. His practice areas are diverse, including insurance defense, products liability, bad faith defense, workers compensation and employment law.

Mark is a member of the American Board of Trial Advocates, an invitation only national association of experienced trial lawyers and judges dedicated to the preservation and promotion of the civil jury trial right. Mark is also a member of the Iowa Academy of Trial Lawyers, a group of 250 attorneys who have displayed exceptional skills and the highest integrity, and who have dedicated their professional lives primarily to trial practice. Admission to the Academy is by invitation only upon sponsorship and recommendation from peers and judges and unanimous approval by the Board of Governors. Mark also maintains a Preeminent AV rating by Martindale Hubbell. He was selected for inclusion in the National Trial Lawyers Top 100 Trial Lawyers, is a Lifetime Charter Member of Rue Ratings’ Best Attorneys of America, and has been selected as a Top ICO Litigation Lawyer for the State of Iowa by the American Society of Legal Advocates.

Mark is retired from the Iowa National Guard 132nd Fighter Wing, where he served as the Staff Judge Advocate after serving in a similar capacity in active duty with the United States Air Force. He worked as a judge advocate in the United States Air Force from 1982 through 1986, serving as both prosecutor and defense counsel in criminal trials and on the Claim and Tort Litigation staff in Washington, D.C., responsible for defending the Air Force in civil tort actions. He joined the law firm of Grefe Sidney in 1986.