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

Police Crime

Pursuit following railroad theft ends in New Lenox; one suspect at large

NEW LENOX, Ill. – A reported cargo theft in Wilmington Township sparked a multi-jurisdictional pursuit Saturday morning that ended with a crash and a manhunt in a New Lenox neighborhood. The...
Amazon to cut 16,000 jobs in latest round of layoffs

Amazon to cut 16,000 jobs in latest round of layoffs

By Brett DavisThe Center Square Seattle-based Amazon announced on Wednesday morning that it’s laying off approximately 16,000 corporate employees globally as part of the multinational technology company’s restructuring efforts to...
Illinois Quick Hits: Water rates could rise

Illinois Quick Hits: Water rates could rise

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – Illinois American Water has filed a request with the Illinois Commerce Commission to raise customer rates in...
WATCH: Population gain through international migration; Chicago looks to prosecute ICE

WATCH: Population gain through international migration; Chicago looks to prosecute ICE

By Greg Bishop | The Center SquareThe Center Square (The Center Square) – In today's edition of Illinois in Focus Daily, The Center Square's Greg Bishop delves into the latest...
Will County Board Graphic.04

Waste Management Commits to Expanded Litter Patrols Around Landfill

Will County Landfill Committee Meeting | Jan. 13, 2026 Article Summary: Following complaints from county officials, Waste Management has agreed to significantly expand its litter collection efforts along roadways surrounding...
Meeting Briefs

Meeting Summary and Briefs: Will County Ad-Hoc Ordinance Review Committee for Jan. 13, 2026

Will County Ad-Hoc Ordinance Review Committee Meeting | Jan. 13, 2026 The Will County Board Ad-Hoc Ordinance Review Committee met on Tuesday, January 13, 2026, to continue its comprehensive update...
Eight & Co representatives present the results of the feasibility study on January 26-photo by Andrea Arens.

Feasibility Study Outlines Five Paths Forward for 207U

By Andrea Arens Discussions around consolidation had been culminating for months and it was expected. What most weren’t expecting was to consolidate from a 5 building district to a two....
White House seeks to end IL illegal alien college benefits

White House seeks to end IL illegal alien college benefits

By Jonathan Bilyk | Legal NewslineThe Center Square Saying Illinois' laws giving illegal immigrants discounted college tuition "flagrantly" violates federal law, the Justice Department has asked a southern Illinois federal...
Trump issues executive order to expedite rebuilding after Los Angeles County wildfires

Trump issues executive order to expedite rebuilding after Los Angeles County wildfires

By Dave MasonThe Center Square President Donald Trump issued an executive order Tuesday to expedite permits and remove local or state government delays for Los Angeles County residents rebuilding after...
Illinois Quick Hits: Illinois gains population for third straight year

Illinois Quick Hits: Illinois gains population for third straight year

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – According to new estimates from the U.S. Census Bureau, Illinois’ population has risen for the third straight...
Chicago mayor calls for local government 'process' to prosecute feds

Chicago mayor calls for local government ‘process’ to prosecute feds

By Jim Talamonti | The Center SquareThe Center Square (The Center Square) – Chicago officials are digging in against federal immigration law enforcement. City council committees on police and fire...
U.S. population growth slows after Trump border policies enacted

U.S. population growth slows after Trump border policies enacted

By Andrew RiceThe Center Square The growth in U.S. population slowed significantly from July 2024 to July 2025 as President Donald Trump's border enforcement policies slowed international migration, according to...
Maryland joins mid-decade redistricting fight

Maryland joins mid-decade redistricting fight

By Andrew RiceThe Center Square Legislators in Maryland introduced a bill Tuesday that proposed Congressional redistricting. The bill would add Maryland to the number of states that have undergone mid-decade...
Democrats call for Noem's removal after second fatal shooting by DHS agent

Democrats call for Noem’s removal after second fatal shooting by DHS agent

By Thérèse BoudreauxThe Center Square In wake of the second fatal shooting in Minneapolis over the weekend, Democrats are overwhelmingly demanding the removal of Department of Homeland Security Secretary Kristi...
Illinois cannabis industry cautious on child-safety bill, questions focus on regulated products

Illinois cannabis industry cautious on child-safety bill, questions focus on regulated products

By Cat Barker | The Center Square contributorThe Center Square (The Center Square) – A newly introduced bill in the Illinois Senate would add new child-safety education, warning labels and...