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

WATCH: Trump admin singles out Chicago, Pritzker during Antifa roundtable

By Greg Bishop | The Center SquareThe Center Square (The Center Square) – With arguments set Thursday in the state of Illinois’ case challenging President Donald Trump’s use of the...
Screenshot 2025-10-17 at 11.04.29 AM

Peotone School Board Rejects Budget Amid Financial Crisis, Scrambles for Cuts

207U School Regular Board Meeting September 22, 2025 Article Summary: The Peotone Board of Education rejected the district's proposed 2025-2026 budget, which projected a $4.2 million deficit, forcing an emergency...
Meeting Briefs

Meeting Summary and Briefs: Peotone Board of Education Committee for September 22, 2025

207U Committee of the Whole Meeting 9/22/2025 The Peotone Board of Education Committee met on Monday, September 22, 2025, under the shadow of a significant financial crisis after the district’s...
Illinois quick hits: Trump deploys Illinois Nartional Guard; Madigan to report to prison

Illinois quick hits: Trump deploys Illinois Nartional Guard; Madigan to report to prison

By The Center SquareThe Center Square Trump deploys Illinois Nartional Guard President Donald Trump will federalize 300 Illinois National Guard troops, Gov. J.B. Pritzker said in a statement Saturday. 'Pritzker...
Trump deploys California National Guard to Portland

Trump deploys California National Guard to Portland

By Dan McCalebThe Center Square President Donald Trump on Sunday deployed California National Guard troops to Portland after a federal judge in Oregon on Saturday temporarily blocked the president from...
Peace on the line two years after Oct. 7 attacks

Peace on the line two years after Oct. 7 attacks

By Sarah Roderick-FitchThe Center Square Tuesday marks the second anniversary of the Oct. 7, 2023, Hamas terror attack; the impact of that day continues to be felt worldwide. Israel has...
U.S. Supreme Court looks to start consequential new term

U.S. Supreme Court looks to start consequential new term

By Andrew RiceThe Center Square The U.S. Supreme Court will hear the first oral arguments of its new term on Monday, with several high-profile cases already on the docket. The...
U of I scrutinized over perceived preference for international students

U of I scrutinized over perceived preference for international students

By Catrina Barker | The Center Square contributorThe Center Square (The Center Square) – The University of Illinois faces scrutiny over its Spring 2026 Master’s in Accounting program, with the...
Screenshot 2025-10-17 at 10.41.55 AM

District Launches ‘Peotone PRIDE’ Engagement Meetings to Boost Community Communication

207U Committee of the Whole Meeting 9/22/2025 Article Summary: The Peotone school district administration is launching a new community outreach initiative called "Peotone PRIDE," a series of monthly meetings designed...
Youngkin, Johnsion calll for AG candidate to withdraw after violent texts emerge

Youngkin, Johnsion calll for AG candidate to withdraw after violent texts emerge

By Dan McCalebThe Center Square Gov. Glenn Youngkin and U.S. House Speaker Mike Johnson are calling on Virginia attorney general candidate Jay Jones to exit the race after it was...
ICE agents shoot armed woman in suburban Chicago during attack

ICE agents shoot armed woman in suburban Chicago during attack

By Dan McCaleb | The Center SquareThe Center Square (The Center Square) – Border Patrol agents near Chicago shot an armed woman Saturday who was part of a group of...
Pritzker: Trump to federalize Illinois National Guard

Pritzker: Trump to federalize Illinois National Guard

By Dan McCaleb | The Center SquareThe Center Square (The Center Square) – President Donald Trump will federalize 300 Illinois National Guard troops, Gov. J.B. Pritzker said in a statement...

Trump says U.S. in ‘armed conflict’ with drug cartels in Caribbean

By Brett RowlandThe Center Square President Donald Trump told Congress that the U.S. is engaged in "armed conflict" with drug cartels in the Caribbean shortly after ordering four military strikes...
Policy experts unimpressed with SBA’s ‘record’ capital delivered to small businesses

Policy experts unimpressed with SBA’s ‘record’ capital delivered to small businesses

By Tate MillerThe Center Square The Small Business Administration announced it will close Fiscal Year 2025 with record-breaking capital delivered to small businesses, but policy experts are unimpressed by the...
City taxpayer burden swells, as Chicago pension debt rises

City taxpayer burden swells, as Chicago pension debt rises

By Glenn Minnis | The Center Square contributorThe Center Square (The Center Square) – Chicago taxpayers now face unfunded debt from its municipal, laborers, police, fire and teachers’ pensions that...