Judge: CHA lawyers must pay $59K for citing ChatGPT-created cases

Judge: CHA lawyers must pay $59K for citing ChatGPT-created cases

Spread the love

Lawyers who defended the Chicago Housing Authority in a case that resulted in more than $32 million in judgments to two families who claimed their children were sickened by lead paint in public housing, will themselves be on the hook for tens of thousands of dollars in sanctions, because they included fake quotes, rulings and legal citations in court filings prepared using ChatGPT.

In the sanctions order, entered Dec. 5, Cook County Circuit Judge Thomas Cushing directed the law firm of Goldberg Segalla, of Chicago, to pay a sanction of $49,500.

And Goldberg Segalla attorney Larry Mason was also ordered to personally pay $10,000 more.

The judge ordered the sums to be paid to the firm of Rapoport Sims Perry & VanOverloop, also of Chicago.

The Rapoport firm had represented plaintiffs Shana Jordan and Mogan Collins in a lawsuit filed in Cook County court against the CHA in 2022.

In that action, Jordan and Collins asserted their children suffered brain injuries as a result of exposure to lead-based paint present in the CHA apartments in which they lived.

At trial, a jury found the CHA wholly responsible and ordered the housing agency to pay the women at least $24 million, collectively.

At trial, Judge Cushing repeatedly refused to allow the CHA’s defense team, led by Mason, to combat the women’s claims by pointing out that the children could have been exposed to lead contamination in a wide number of places in and around their homes in Chicago.

In his rulings, the judge said the CHA could only present such claims if “it had testimony from an expert that exposure from such sources could or might have been the cause of the minors’ elevated blood lead levels…”

In his sanctions order, the judge noted Mason and the CHA continued to raise such possible alternative exposures in presenting their case at trial, including before the jury, despite continued objections from the plaintiffs’ counsel and instructions from the judge to stop.

Following the verdict, the CHA filed a motion asking for a new trial or for the judge to toss the verdict, asserting it should not have been blocked from presenting its alternative exposure claims.

However, in their reply to that brief, the plaintiffs asserted that one of the cases cited by the CHA, identified as a 2021 Illinois Supreme Court decision listed as Mack v Anderson, appeared “to have been invented out of thin-air.”

About a month later, Goldberg Segalla filed a reply, “conceding in a footnote that ‘plaintiffs ‘identified an improper case citation…”

The judge then held a hearing, demanding an explanation.

During the hearing, Mason and former Goldberg Segalla attorney Danielle Malaty admitted the citation to “Mack v Anderson” was fictitious, and had been “hallucinated” by the ChatGPT artificial intelligence program, which Malaty had used to help research the brief.

Mason said he then signed the brief in March without checking all of the citations contained in the filing to ensure they were both real and accurate.

During the hearing, Mason asserted the false citation was the only fake citation included in the filing.

However, later research from the plaintiffs’ lawyers uncovered at least 14 other instances in which Goldberg Segalla attorneys had also invented quotes from decisions or had committed other errors in representing the outcome of the cases in a bid to support their arguments.

Further, the judge noted Malaty had been fired from the Goldberg Segalla firm in connection with a separate instance of filing legal briefs containing citations “hallucinated” by ChatGPT.

The judge said the errors and lapses in professionalism and judgment should require Mason and the Goldberg Segalla to compensate the Rapoport firm for their time and labor in investigating the fake citations and other references, and in defending against the briefs.

The judge declined to sanction Malaty in this instance, noting she had already suffered professional harm from the prior instances in which she was caught using fake citations and she had been fired from the Goldberg firm.

“Artificial Intelligence is not the cause of bad legal practice,” Judge Cushing wrote. “Lawyers performed their obligations well and performed their obligations poorly before A.I., before electronic research platforms, before on-line publications of case law, and before the development of the West Key Number System or Shepard’s indexes.

“Submission of false legal citations and demonstrably false factual claims pose a grave threat to the judicial branch. People are skeptical of institutions, and the legal profession is not exempt. We are duty-bound to attend to the integrity the courts so that close scrutiny reveals a model of honesty, accountability, and truth-seeking.

“The authority of the courts relies on public confidence that rulings are just and are grounded in the law, not on the whims of judges… Officers of the court cannot become comfortable with careless or deliberate misrepresentation of facts or the law.”

At the same time as he issued the sanctions orders, Cushing also formally rejected the CHA’s request to undo the verdicts or for a new trial.

And the judge agreed to tack on attorney fees to the judgments, awarding the Rapoport firm more than $8 million in attorney fees in the case.

With the attorney fees and other costs and awards tacked on, the CHA would now be required to pay nearly $32.2 million to resolve the case.

The CHA could yet appeal the judge’s decisions.

Leave a Comment





Latest News Stories

Feds charge 15 in $90M Minnesota childcare, Medicaid fraud

Feds charge 15 in $90M Minnesota childcare, Medicaid fraud

By Andrew RiceThe Center Square Federal prosecutors announced charges against 15 people in Minnesota on Thursday in connection to Medicaid and childcare fraud costing taxpayers more than $90 million. Prosectors...
House GOP pushes Pritzker for local control

House GOP pushes Pritzker for local control

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – Illinois House Republicans say Governor J.B. Pritzker’s housing proposals will give local control to state politicians, but...
Illinois Quick Hits: Freedom Caucus urges DOJ investigation of Illinois

Illinois Quick Hits: Freedom Caucus urges DOJ investigation of Illinois

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – The Illinois Freedom Caucus is calling on the U.S. Department of Justice to investigate whether the Illinois...
Hundreds of Uber drivers demand union-permitting bill move in Springfield

Hundreds of Uber drivers demand union-permitting bill move in Springfield

By Sean Reed | The Center SquareThe Center Square (The Center Square) – Nearly 400 drivers for platforms like Uber and Lyft appeared at the Illinois Capitol, where they urged...
Summons issued to ISP, AG Cook County in FOID challenge

Summons issued to ISP, AG Cook County in FOID challenge

By Greg Bishop | The Center SquareThe Center Square (The Center Square) – Officials with the Illinois State Police, attorney general’s office and Cook County state’s attorney have been summoned...
Pritzker knocks state progressives’ ability to pass new tax measures

Pritzker knocks state progressives’ ability to pass new tax measures

By Sean Reed | The Center SquareThe Center Square (The Center Square) – Illinois Gov. J.B. Pritzker ruled out the passage of many new tax proposals from progressive lawmakers before...
Illinois Quick Hits: Pritzker talks Bears stadium with NFL commissioner

Illinois Quick Hits: Pritzker talks Bears stadium with NFL commissioner

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – Gov. J.B. Pritzker says National Football League Commissioner Roger Goodell has reiterated that the Chicago Bears are...
Op-Ed: Oversight faps in federal drug program put Illinois’ independent practices at risk

Op-Ed: Oversight faps in federal drug program put Illinois’ independent practices at risk

By Dr. Priya BansalThe Center Square Community-based care is part of the fabric of the healthcare system in Illinois. As an allergist and immunologist practicing in St. Charles, I take...
War of words reignites with Trump, Pritzker, Bailey

War of words reignites with Trump, Pritzker, Bailey

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – President Donald Trump has resumed his war of words with Illinois Gov. J.B. Pritzker, who responded by...
Judge won’t let ConAgra off hook in class action over fish fillet brine

Judge won’t let ConAgra off hook in class action over fish fillet brine

By Scott Hollan | Legal NewslineThe Center Square CHICAGO — A federal judge won’t yet let food products maker ConAgra off the hook for a class action accusing it of...
Will County Board Graphic.02

Meeting Summary and Briefs: Will County Board Legislative Committee for May 5, 2026

Will County Board Legislative Committee Meeting | May 5, 2026 The Will County Board Legislative Committee navigated a heavy policy agenda during its May 5, 2026, meeting, balancing extensive state...
Crete Monee School Board Graphic.2

Meeting Summary and Briefs: Crete-Monee Board of Education for May 12, 2026

Crete-Monee Board of Education Meeting | May 12, 2026 The Crete-Monee School District 201-U Board of Education held its Committee of the Whole meeting on Tuesday, May 12, 2026. The...
Will County Board Graphic.04

Meeting Summary and Briefs: Will County Board Executive Committee for May 14, 2026

Will County Board Executive Committee Meeting | May 14, 2026 The Will County Board Executive Committee held a four-hour-plus meeting on May 14, 2026, dominated by a deeply contested vote...
Will County Board Graphic.01

Will County Executive Committee Splits on Whether to Ask Voters About Single-Member Districts

Will County Board Executive Committee Meeting | May 14, 2026 Article Summary: The Will County Board Executive Committee on Thursday, May 14, 2026, took the temperature of members on a...
Will County Finance Logo

Will County Departments to Stop Accepting Pennies, Rounding Down Cash Transactions

Will County Board Finance Committee Meeting | May 5, 2026 Article SummaryIn preparation for the U.S. Mint ceasing production of the penny in November 2025, the Will County Finance Committee...