Stephanie C. Chomentowski


Stephanie Chomentowski has successfully tried a number of cases in state and federal court. She has represented clients in federal grand jury investigations, before government agencies, in mediation and arbitration, and in other adversarial proceedings. Stephanie’s litigation and trial practice is focused on favorably resolving a wide variety of issues for her clients, including complex business disputes, commercial litigation matters, intellectual property issues, defense of multimillion-dollar catastrophic liability cases, and white collar criminal defense matters. She has represented clients in a number of industries, including automotive, energy, and manufacturing. 

Stephanie interned with the Honorable Jacob P. Hart, U.S. Magistrate Judge for the Eastern District of Pennsylvania and the Environmental, Health, and Safety legal department at Tyco International. At law school, she took first place in the 2005 I. Herman Stern Moot Court Competition, was Vice President of the Temple Moot Court Honor Society, was a staff member on the Temple International and Comparative Law Journal, and was awarded a scholarship for all three years.

Stephanie holds a civil engineering degree from the Pennsylvania State University. Before her law career, Stephanie managed construction projects for McKinstry Company, a nationwide mechanical engineering and construction firm. She also was a geotechnical and environmental sampling engineer for Advanced GeoServices Corporation, where, among other things, she collected contaminated soil, water, and other samples at regional Superfund sites and assessed foundations for new construction.

Outside the Firm

Stephanie enjoys spending time with her two young boys and vigorously cheering for them at all of their sporting events.


  • Won four million dollar judgment for celebrity client on claims of fraud, conversion, and conspiracy based upon misrepresentations and theft of investment monies by individuals and lenders.
  • Favorably resolved pre-trial injury and fatality claims resulting from an explosion on behalf of a nationwide propane distributor.
  • Represented an industrial/manufacturing company in all aspects of litigation in a multimillion-dollar contract dispute with a major industrial boiler manufacturer.
  • Aggressively litigated and settled pre-trial a copyright infringement case involving software code for automobiles on behalf of an after-market automotive parts manufacturer.
  • Won $25 million verdict for plaintiff finance company in the energy and power sector, in a breach of contract action.
  • Won a $4.5 million verdict awarding damages to financing institution as a result of borrower’s default.
  • Won two million dollar judgment plus injunctive relief on trademark infringement claims on behalf of nationwide cable and telecommunications services provider.
  • Won one million dollar judgment for individual plaintiff seeking compensation relating to high-end real estate investment.
  • Defense verdict for developer of solar panel systems, in millions of dollars of claims relating to alleged construction disputes on two installation projects in New York.
  • Secured complete defense verdict for individual facing claims of conversion, replevin, and trespassing.
  • Secured summary judgment for lender finding defendant liable as a matter of law in a breach of contract action.
  • Won $1.6 million FINRA arbitration award, plus punitive damages and attorneys’ fees, on behalf of an individual options trader, in employment dispute with hedge fund.
  • Secured ruling of $0 damages on behalf of an electrical contractor, in defense of claims that its installation of electrical equipment caused the loss of millions of dollars of flu vaccine.
  • Aggressively defended generic drug manufacturer in MDL and other state proceedings in relation to Zantac/ranitidine.
  • Favorably resolved pre-suit class action claims relating to incomplete advertising statements made online for goods.
  • Represented industrial gas manufacturer in class action claims relating to service and delivery terms.
  • Won one million dollar award in AAA arbitration on behalf of a plaintiff foreign electrical subcontractor against a general contractor on contract and government contracting claims.
  • Assisted in successfully resolving several complex civil and criminal matters for a global medical device manufacturer, including off-label promotion, anti-kickback and other criminal conduct, and sensitive employment matters.
  • Several representations of individuals in connection with maintaining undisclosed offshore bank accounts.
  • Represented a global developer of sales and marketing software for the pharmaceutical industry, in an international arbitration for breach of contract.
  • Represented clients before the United States Supreme Court, the Pennsylvania Supreme Court, and the Court of Appeals for the Third Circuit.

News & Views

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  • 2018–2022, Pennsylvania “Super Lawyer” in Business Litigation, listed in Super Lawyers
  • 2010–2011, 2013–2016, Pennsylvania “Rising Star,” listed in Super Lawyers



  • Philadelphia Bar Association
  • Pennsylvania Bar Association
Professional Activities

Stephanie handles a number of pro bono cases each year and was named to the First Judicial District of Pennsylvania Pro Bono Honor Roll in 2007, 2014, and 2015 for her work at the SeniorLAW Center.



  • Pennsylvania
  • New Jersey
  • United States Court of Appeals for the Third Circuit
  • U.S. District Court - Eastern District of Pennsylvania
  • U.S. District Court - New Jersey
  • U.S. District Court - Eastern District of Michigan
  • U.S. District Court - Middle District of Pennsylvania


  • Pennsylvania State University, BS
  • Temple University Beasley School of Law, JD
  • French