Jack Prior

Jack B. Prior, a trial attorney, aggressively litigates matters locally and nationally on behalf of clients ranging from injured individuals to small businesses to Fortune 500 companies. Jack dedicates a significant percentage of his practice to complex products and premises liability disputes. Jack also has an extensive background litigating class actions, mass torts, intra-company and employment conflicts, breach of business contracts, unlawful business practices, malpractice matters and discrimination suits.

Jack takes pride in managing every facet of a complicated case. He takes a proactive approach emphasizing pre-suit investigation and early litigation analysis in order to effectuate the best strategic approach for each particular client and the unique circumstances of a dispute. He is well-versed in conducting fact and expert discovery, drafting and arguing successful case-dispositive motions and appellate briefs, and representing clients at hearings, mediations, settlement conferences and trial in both state and federal courts. Jack’s number one priority is and will always be obtaining the best result for his client.

Jack, a Levitt Scholar, graduated cum laude from Hamilton College with a double concentration in mathematics and government. After graduating with honors in an intellectual property concentration from Boston University School of Law, Jack served as a judicial extern for the United States District Court for the Northern District of Illinois.

Jack has received professional accolades including being recognized as an Emerging Lawyer (awarded to 2.0% of attorneys in Illinois) and selected to Super Lawyers’ Rising Star lists (awarded to 2.5% of attorneys in Illinois).

Jack resides in Chicago with his wife Jennifer, a Chicago native, and their two sons.

  • Hamilton College, B.A. (Double Concentration in Mathematics and Government), cum laude, 2008
  • Boston University School of Law, (Concentration in Intellectual Property), J.D., with honors, 2011

  • Illinois, 2011
  • U.S. District, Northern District of Illinois, 2012
  • U.S. District, Eastern District of Wisconsin, 2012
  • U.S. District, Southern District of Illinois, 2014
  • U.S District, Eastern District of Michigan, 2016
  • U.S. Court of Appeals, Seventh Circuit, 2018
  • Missouri, 2018

  • Illinois Rising Star (awarded to 2.5% of attorneys in Illinois)
  • Emerging Lawyer (awarded to 2.0% of attorneys in Illinois)
  • Levitt Scholar
Practice Highlights
  • 2016-cv-3860 (N.D. Ill) aff’d 2018-2103 (7th Circ.): Affirmed on appeal that insurer owed millions of dollars in payment and wrongfully denied insurance coverage for hail and wind damage sustained by several residential condominium buildings.
  • 2014 L 12998 (Cir. Ct. Cook Cty): Obtained judgment in the amount of $1,683,000.00 due to breach of contract, breach of guaranty and application of exception to Illinois Interest Act.
  • 2016 L 1208 (Cir. Ct. Cook Cty): Tried week-long jury trial resulting in $405,000.00 verdict in favor of clients arising out of property damage to limited edition exotic supercar and personal injury to operator of car.
  • 2016 L 6277 (Cir. Ct. Cook Cty) aff’d 2019 IL App. (1st) 180161-U: Affirmed on appeal that neurospine surgical facility did not meet its burden to prove that nearly $200,000.00 in medical bills the surgery center sought to collect from client injured in motor vehicle crash were reasonable, necessary or related to the subject incident.
  • 2014-cv-6145 (N.D. Ill): Obtained summary judgment as to cross-claim for breach of contract for failure to procure and maintain insurance and lack of good faith in denying the duty to defend and indemnify in six-figure coverage dispute
  • 2014-cv-3866 (N.D. Ill): Served as defense counsel in case involving nationwide class action allegations concerning the packing of mulch products. During the pendency of class certification briefing, the case was settled on an individual basis.
  • 2015 L 26 (Cir. Ct. Grundy Cty): Prevailed on multiple summary judgments as to direct claims for personal injury and cross-claims as to insurance obligations on behalf of national retailer in case involving six-figure damages.
  • 2013 L 558 (Cir. Ct. Kane Cty) aff’d 2016-0231 (2d Dist): Prevailed in lower court and affirmed that national retailer owed no duty to plaintiff alleging six-figure damages.
  • Perrin Food & Beverage Litigation Conference, Ethical Issues in Business Interruption Claims, 2020
  • Chicago Bar Association, Dispositive Motion Seminar, 2019

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