Photo of Molly A. Arranz

Molly A. Arranz



University of Wisconsin Law School, J.D., 2003

Marquette University, B.A., 1998, magna cum laude and Phi Beta Kappa




For Molly Arranz, being a lawyer is about being an advocate. Growing up she witnessed legal challenges her father faced while he ran his own, small business—issues that resulted from his not finding necessary legal assistance for his company’s needs. Her decision to go to law school stemmed from her desire to address this gap and provide legal support for businesses like the one her father owned.

Her first jury trial was a six-figure case where she faced more seasoned lawyers. She won the case on the first day of trial based on her arguments on pretrial motions, which resulted in a full dismissal of the entire matter. Molly’s excitement over this result was enlarged by the fact that, the night before trial started, while preparing her opening statement, she learned that she and her husband were expecting their first child.

Molly defends clients against class and collective actions, in federal and state courts throughout the country. She also counsels clients on matters relating to marketing and advertising noncompliance, regulations on consumer protection, and data privacy. She defends clients against alleged infractions of statutes and regulations, including the Telephone Consumer Protection Act (TCPA), the Fair & Accurate Credit Transactions Act (FACTA) and the Fair Labor Standards Act (FLSA). Molly also defends clients against matters arising out of claims of alleged toxic exposures and claims of contaminated soil or groundwater brought under CERCLA, the Clean Water Act, RCRA, and their state counterparts.

Outside of practicing law, Molly participates in community, school and church organizations. She regularly volunteers at her daughter’s school, teaching grade school students about fine art and its artists.


  • Selected to the Illinois Super Lawyers List of Rising Stars: 2011, 2013

Memberships & Involvement

  • Member: American Bar Association; Wisconsin Bar Association


  • Achieved a victory from Judge Posner for the Seventh Circuit, raising the bar that the plaintiffs’ counsel must clear in order to satisfy the adequacy requirement for class certification
  • Won judgment, affirmed on appeal, in favor of a national testing agency and against plaintiffs who alleged a putative class of 16 million persons
  • Obtained judgment on behalf of a small company in a Florida class action case by showing no vicarious liability for the alleged infractions of the federal statute at issue and thereafter argued the case in front of the Eleventh Circuit
  • Obtained dismissal with prejudice of a case, on the first day of an expected two week trial, based upon the theory that damages sought were not compensable under Illinois law and won the issue on appeal. This presented an issue of first impression
  • Obtained summary judgment on behalf of a major bank in a case alleging injuries from exposure to purported toxic mold, where plaintiff alleged potential damages over 1 million dollars