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

Illinois Quick Hits: $3M in taxpayer funds go to Chicago neighborhood center

Illinois Quick Hits: $3M in taxpayer funds go to Chicago neighborhood center

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – Illinois taxpayers have provided $3 million for a new neighborhood center on Chicago’s Southwest Side. Gov. J.B....
Casey Westfield Baseball Graphic

Casey-Westfield Capitalizes on Mistakes to Blank Arthur-Okaw Christian 10-0

The Casey-Westfield varsity baseball team took full advantage of a struggling Arthur-Okaw Christian defense on Monday afternoon, cruising to a 10-0, five-inning non-conference victory on their home diamond. The Warriors’...
Screenshot 2026-04-08 at 5.36.31 PM

Casey Council Transfers Vacant Lots to Central Illinois Land Bank Authority

Casey City Council Meeting | April 6, 2026 Article Summary: The City of Casey will transfer a pair of vacant, city-owned lots to the Central Illinois Land Bank Authority to...
Temu, Shein hit with class actions demanding tariff refunds

Temu, Shein hit with class actions demanding tariff refunds

By Jonathan Bilyk | Legal NewslineThe Center Square Online Chinese discount marketplace giants Temu and Shein have each been hit with nationwide class action lawsuits, demanding they repay customers for...
Illinois has most government units, but consolidation brings challenges

Illinois has most government units, but consolidation brings challenges

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – A new report says Illinois is among the most fragmented states in the nation when it comes...
Illinois quick hits: Southwest to lay off 107 as O'Hare service ends

Illinois quick hits: Southwest to lay off 107 as O’Hare service ends

By Jim Talamonti | The Center SquareThe Center Square Southwest to lay off 107 as O'Hare service ends According to an Illinois Worker Adjustment and Retraining Notification Act notice, 107...
State House passes 133 bills, many potential impacts for Illinoisans

State House passes 133 bills, many potential impacts for Illinoisans

By Sean Reed | The Center SquareThe Center Square (The Center Square) – The Illinois House of Representatives passed a total of 133 bills last week, sending them to the...
Casey Westfield Baseball Graphic

Breese Central Powers Past Casey-Westfield 7-1 in Saturday Afternoon Clash

The Casey-Westfield varsity baseball team saw its Saturday momentum stifled in the afternoon cap of a home slate, falling 7-1 to a formidable Breese Central squad in non-conference action at...
Casey Westfield Baseball Graphic

Early Offensive Surge Propels Casey-Westfield Past Farina South Central 6-4

The Casey-Westfield varsity baseball team relied on a flurry of early-inning offense to secure a 6-4 non-conference victory over visiting Farina South Central on Saturday morning at Jerald Barr Field....
Casey Westfield Softball Graphic

Goble Tosses Shutout, Homers to Lead Casey-Westfield Past Murphysboro 3-0

Senior Ava Goble delivered a masterful two-way performance on Saturday, pitching a complete-game shutout and hitting a home run to propel the Casey-Westfield varsity softball team to a 3-0 home...
Casey Westfield Softball Graphic

Casey-Westfield Holds Off Central A & M Rally for 5-4 Tournament Victory

The Casey-Westfield varsity softball team successfully fended off a mid-game surge to secure a 5-4 victory over Central A & M in Saturday's home tournament matchup. Behind early offensive fireworks...
Screenshot 2026-04-08 at 5.36.26 PM

Casey Police Department to Receive Upgraded Tasers in $59,778 Agreement

Casey City Council Meeting | April 6, 2026 Article Summary: The Casey Police Department will phase out its obsolete Taser equipment after the City Council approved a new five-year, $59,778...
Casey Westfield Baseball Graphic

Walk-Off Winner: Pruemer’s Complete Game Lifts Windsor/Stewardson-Strasburg Over Casey-Westfield

The Windsor/Stewardson-Strasburg varsity baseball team secured a thrilling 4-3 walk-off victory over Casey-Westfield on Friday, using a bottom-of-the-seventh rally to cap off a gritty non-conference win at home. Junior Noah...
Casey Westfield Softball Graphic

Goble, Bonds Go Deep as Casey-Westfield Offense Overwhelms BHRA, 17-4

An unrelenting offensive attack propelled the Casey-Westfield varsity softball team to a commanding 17-4 non-conference victory over Bismarck-Henning/Rossville-Alvin (BHRA) on Thursday. The visitors combined for 19 hits, including a pair...
Casey Westfield Baseball Graphic

Lock’s Homer, Jones’ Complete Game Power Cumberland Past Casey-Westfield, 7-4

The Cumberland varsity baseball team used a middle-inning offensive surge, highlighted by a Lance Lock home run, to defeat visiting Casey-Westfield 7-4 in Thursday's non-conference matchup in Toledo. Junior Lance...