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

Will County P&Z Logo Planning Zoning.2

P&Z Approves Lockport Bounce House Business Expansion

Will County Planning and Zoning Commission Meeting | April 7, 2026 The commission unanimously approved Zoning Case #ZC-25-137 for Victor H. Lule Huerta, owner of 3262 S. State Street in...
78 pro-life orgs ask DOJ to stop undermining state laws by favoring aborting drug industry

78 pro-life orgs ask DOJ to stop undermining state laws by favoring aborting drug industry

By Tate MillerThe Center Square Susan B. Anthony Pro-Life America led 77 of its pro-life organization colleagues in sending the acting U.S. attorney general a letter asking the Department of...
Illinois Quick Hits: Two of ComEd four released; new trial expected

Illinois Quick Hits: Two of ComEd four released; new trial expected

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – A U.S. appellate court has ordered two defendants in the ComEd Four case to be released pending...
Will County Finance Logo

Will County Treasurer Seeks Policy on Cash Payments as U.S. Mint Discontinues the Penny

Briefs: Will County Board Finance Committee Meeting | April 7, 2026 Article Summary: With the U.S. Mint ceasing production of the penny, the Will County Treasurer's Office is asking the...
—Photo by Glenn P. Knoblock

Lend a hand this spring at Volunteer Morning programs

Volunteers are being sought for spring programs that help spruce up the preserves by removing invasive species, controlling brush and planting native plants. Here are the spring Volunteer Morning programs....
Will County Board Graphic.03

Proposed State Legislation Sparks Debate Over Will County Veterans Assistance Commission Budget Control

Will County Board Legislative Committee Meeting | April 7, 2026 Article Summary: State legislation aimed at granting county boards ultimate approval power over Veterans Assistance Commission (VAC) budgets sparked debate...
Beecher Baseball Bobcats

Clifton Central Powers Past Beecher 11-8 in High-Scoring Conference Matchup

A combined eight-run outburst across the fourth and fifth innings propelled the Clifton Central varsity baseball team to an 11-8 home conference victory over Beecher on Tuesday afternoon. Both lineups...
Chicago suit vs oil cos. may yet survive SCOTUS ruling, judge hints

Chicago suit vs oil cos. may yet survive SCOTUS ruling, judge hints

By Jonathan Bilyk | Legal NewslineThe Center Square Even as the Supreme Court considers a Colorado case that oil companies believe will decide if city and state governments can sue...
Two of ComEd Four released. new trial pending

Two of ComEd Four released. new trial pending

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – A U.S. appellate court has ordered two defendants in the ComEd Four case to be released pending...
GOP candidate Bailey urges Trump to apologize to pope; bishop calls for dialogue

GOP candidate Bailey urges Trump to apologize to pope; bishop calls for dialogue

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – After President Donald Trump refused to apologize for his social media criticism of Pope Leo XIV, a...
Senator says taxpayers fleeced by corrections department

Senator says taxpayers fleeced by corrections department

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – The Illinois Department of Corrections is facing questions over its failure to comply with state law while...
Illinois Quick Hits: CTU-backed senator launches 'tax the rich' campaign

Illinois Quick Hits: CTU-backed senator launches ‘tax the rich’ campaign

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – An Illinois legislator backed by the Chicago Teachers Union is renewing her call to tax the rich...
Lawmaker slams Illinois tuition bill favoring illegal immigrants

Lawmaker slams Illinois tuition bill favoring illegal immigrants

By Catrina Barker | The Center Square contributorThe Center Square (The Center Square) – State Rep. Adam Niemerg, R-Dieterich, is raising concerns about a proposal he says would expand access...
will county board meeting graphic.5

Meeting Summary and Briefs: Will County Public Works & Transportation Committee for April 7, 2026

Will County Public Works & Transportation Committee Meeting | April 7, 2026 The Will County Board Public Works & Transportation Committee met on Tuesday, April 7, 2026, moving forward a...
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....