The letter that Stephen Brigandi claimed he did not write sat on a San Diego law firm's file for months, unreviewed and unchallenged, before a computer forensics expert named James Berriman examined the digital fingerprints embedded in its code. What Berriman discovered was stark: the document that Brigandi would later cite as evidence of his proper disclosure practices to a court-ordered hearing was not created in 2018, when Brigandi claimed to have prepared it. It was created in 2025 — months after the ethics investigation had begun, months after the questions had been asked, and months after Brigandi had already submitted three court filings containing more than two dozen fabricated legal citations to an Oregon federal court.

On April 4, 2026, U.S. Magistrate Judge Mark Clarke issued an opinion that would become the most expensive attorney misconduct verdict in American legal history: $96,000 in direct sanctions against Brigandi, with total monetary penalties to both the attorney and his co-counsel exceeding $110,000. The figure — believed to be the highest ever imposed for AI-generated hallucinations in legal filings — reflects not merely a finding of negligence but a judgment that Brigandi and his client had undertaken a sustained campaign of deception that went to the heart of the judicial system's integrity.

What makes the Brigandi case singular is not the technology that generated the false citations. That technology — the large language model underneath ChatGPT, Google's Gemini, and countless other AI tools — has been generating hallucinated citations for months. What makes the Brigandi case singular is the scale of the falsification, the sophistication of the concealment, and the willingness of a federal judge to impose consequences that finally give shape and substance to the consequences attorneys face when they allow AI to do their thinking for them.

The Winery War and the Sibling Dispute

Valley View Winery sits in southwestern Oregon, a family asset currently at the center of litigation that would ordinarily seem significant only to the Wisnovsky family. The lawsuit, filed in January 2021, is a classic intrafamily business dispute: Joanne Couvrette, the eldest sibling, sued her two younger brothers, Mark and Michael Wisnovsky, seeking control of the vineyard as their ailing mother's death loomed. It was the kind of case that family law attorneys encounter regularly — emotionally fraught, financially consequential, and soaked in the particular bitterness that arises when blood relatives become business adversaries.

Brigandi entered the picture in early 2024, nearly three years after the lawsuit had been filed. He joined the litigation as counsel for Couvrette, though given his location in San Diego and the case's jurisdiction in Oregon federal court, he required special permission to appear pro hac vice — a privilege that came with a local counsel requirement. An Oregon attorney named Tim Murphy agreed to serve in that capacity, vouching for Brigandi and assuming the obligation to monitor the case.

The two lawyers had no way of knowing, at the time they entered the representation, that they were about to become defendants in what would be one of the most expensive attorney discipline cases in American legal history.

The Motions That Broke the Rules

Between January 2025 and March 2025, Brigandi filed three separate motions in support of Couvrette's claim. In total, the three filings contained citations to 15 nonexistent cases and eight fabricated quotations falsely attributed to legitimate legal authorities. The citations were not typographical errors — incorrect case numbers, transposed dates, or other mechanical mistakes that might arise from careless cite-checking. They were wholesale inventions: cases with plausible names, realistic courts, convincing citation formats, and quotations that sounded as if they came from actual judicial opinions.

All of this material was generated by artificial intelligence.

Brigandi later acknowledged that "some of the drafting involved the use of GAI" — generative artificial intelligence — but insisted that he had not drafted the documents himself. When asked directly whether he bore responsibility for the fabrications, he responded with the now-familiar refrain of lawyers caught in AI hallucination scandals: "I did not draft the document."

The question of who actually drafted the documents became the centerpiece of the magistrate judge's opinion. On its surface, it seemed like a straightforward inquiry: who was responsible for submitting briefs containing 23 fabricated legal citations to a federal court? But the answer, Judge Clarke concluded, was more complicated than Brigandi's denial suggested.

The Smoking Gun: Digital Forensics and the Backdated Letter

The pivotal moment in the case came when Judge Clarke ordered computer forensics analysis of the documents Brigandi had produced in response to the court's discovery requests. The expert hired by the opposing counsel, James Berriman, examined the metadata — the embedded digital records that document when files are created, accessed, and modified. His findings were unequivocal: the letters and documents that Brigandi claimed demonstrated his proper disclosure practices were not contemporary with the events they purported to describe. They were fabrications, created after the litigation had begun to reveal the false citations.

Judge Clarke noted the obvious implication: Brigandi had spent months watching the case deteriorate, watching the opposing counsel identify the fabrications, and watching the system begin to demand accountability. Then, and only then, he manufactured the documentary evidence he hoped would protect him.

Who Actually Drafted the Briefs? The Couvrette Question

But Judge Clarke's opinion raises an even more damaging finding: the briefs containing the AI-generated citations may not have been drafted by Brigandi at all. They may have been drafted by Couvrette — his client.

The evidence for this conclusion came from Couvrette's own history. According to filings submitted by her brothers' attorneys, Couvrette is what the legal system calls a "serial pro se litigant" — someone with a history of representing herself in court and proudly boasting of her litigation experience. More significantly, the brothers' attorneys uncovered evidence that Couvrette had herself filed briefs in Oregon state court, in cases related to the same subject matter, that contained fabricated citations in a form and style remarkably similar to the federal briefs at issue.

Judge Clarke noted this pattern: "Only a few months ago Couvrette filed in the Oregon court of appeals two legal briefs containing fake cases that are very similar in form and appearance to the three sanctionable briefs Plaintiffs filed in this case."

The brothers' attorneys asked the judge to sanction Couvrette personally, not just her attorneys. Clarke declined to do so — but not because he found her innocent. He declined because Couvrette, when given multiple opportunities to explain her role in drafting the documents, had chosen silence. "Ms. Couvrette's and Mr. Brigandi's silence, despite multiple opportunities to explain their side of the story, speaks volumes," Clarke wrote.

That silence, in the language of civil litigation, amounts to an admission. Couvrette had represented herself as a sophisticated litigant with substantial pro se experience. She had access to the same AI tools that everyone else did. She had a motive to maximize the strength of her legal arguments. And when asked whether she had drafted the problematic briefs, she said nothing.

The obvious inference — that Couvrette had used AI to generate briefs containing false citations, that Brigandi had failed to adequately review her work product, and that both had then lied about their respective roles when confronted — hung over the remainder of the opinion.

The Local Counsel Fails to Watch

Tim Murphy, the Oregon attorney who served as local counsel, faced his own reckoning. Murphy claimed he had "absolutely no involvement" in the citation of the fake cases, that he was "embarrassed" to have his name associated with the case, and that he "regretted" ever agreeing to serve as local counsel.

Judge Clarke found Murphy's protestations partially credible but ultimately unavailing. Local counsel, under Oregon federal court rules, has an obligation to "meaningfully participate" in the case. Murphy had not. He had neither drafted nor carefully reviewed the motion containing the fabricated citations. He had failed to question formatting that should have been obvious as unusual: false citations appearing as bullet points rather than in standard legal citation format.

For this failure to meaningfully supervise, Judge Clarke imposed upon Murphy liability for 15% of the opposing counsel's legal fees — approximately $14,200. Murphy later told reporters he was "embarrassed" and "considering" his options to appeal. "It's my fault I was not watching over Brigandi closely enough," he conceded.

The Nuclear Sanction: Terminating Sanctions and Dismissal with Prejudice

But the financial penalties imposed on the attorneys, substantial as they were, were not the case's most severe consequence. That distinction belongs to the substantive dismissal with prejudice that Clarke entered against Couvrette.

Terminating sanctions — dismissals of a party's entire case as punishment for misconduct — are the nuclear option in civil litigation. They are reserved for cases where a party's conduct is so egregious that nothing short of case dismissal can remedy the harm to the opposing party and the integrity of the judicial process. Judge Clarke found that Couvrette's use of AI to generate fabricated citations, her failure to disclose this use to her attorney or the court, and her silence when given an opportunity to explain herself, collectively justified terminating sanctions.

"If there was ever an 'appropriate case' to grant terminating sanctions for the misuse of artificial intelligence, this is it," Clarke wrote.

The dismissal with prejudice means Couvrette cannot refile the same claims. The opportunity to litigate her dispute with her brothers is gone. Whatever merits her case may have had — and Judge Clarke was careful not to rule on them — they are now foreclosed forever because of the procedural misconduct that preceded their adjudication on the merits.

The Broader Significance: The Brigandi Case as Watershed

Damien Charlotin, the Paris-based researcher who maintains the world's most comprehensive database of AI hallucination cases in court, was unequivocal about the Brigandi decision's significance: "The sanctions against Brigandi and the other attorney are 'the highest so far' in the U.S."

The figure of $110,000 in aggregate penalties is not a typo or a partial accounting. It is the total of Brigandi's $96,000 judgment (including the $15,500 in disciplinary sanctions and the $80,500 in opposing counsel's legal fees) plus Murphy's $14,200 liability for opposing counsel's fees. For context, this is approximately 30 times the per-attorney fine imposed in the celebrated MyPillow case, in which Lindell's lawyers were fined $3,000 each for fabricated citations.

The escalation in penalties matters. It signals to the legal profession that the courts are no longer treating AI hallucinations as an interesting technological problem or a byproduct of the profession's rush to adopt new tools. They are treating them as a serious breach of the fiduciary duty owed to clients and the fundamental duty owed to courts.

The Computer That Disappeared

In a final twist that Judge Clarke noted with evident frustration, Brigandi destroyed the computer that would have provided the most direct evidence of who had actually drafted the problematic briefs. The destruction occurred after the ethics investigation had begun but before the forensic analysis could be completed.

The destruction of evidence in the face of pending litigation is, in the legal system's calculus, among the most serious acts an attorney can commit. It demonstrates not merely consciousness of guilt but an active willingness to obstruct the very process designed to establish the truth. Judge Clarke noted the destruction without imposing a separate sanction for it — the existing penalties and dismissal having rendered additional consequences unnecessary.

But the detail matters. It completes a picture of an attorney who, faced with mounting evidence of his own involvement in or supervision of conduct that violated the rules of professional conduct, chose not to come clean but to cover up.

The Rule Violation at the Heart

What is the rule that Brigandi and Couvrette violated? It is, in essence, Rule 11 of the Federal Rules of Civil Procedure, which requires every attorney signing a court filing to certify that, to the best of the attorney's knowledge, the factual contentions and the legal arguments contained in the filing are warranted by law and fact.

The rule is not complicated. It does not require perfection. It does not require that every citation be flawlessly formatted or that every legal argument be ultimately persuasive. It requires only that the attorney who signs the filing have actually read it, verified the citations, and confirmed that the cases cited actually exist and that the quotations attributed to them are accurate.

For Brigandi, the failure was not merely to comply with Rule 11. It was to sign a filing knowing (or recklessly disregarding the fact) that it contained citations to nonexistent cases. Whether he personally drafted the briefs or merely failed to review them adequately, the responsibility was his.

Lessons for the Profession

Judge Clarke's opinion will, in all likelihood, be cited for years as the watershed moment when courts began imposing serious financial consequences for AI-generated hallucinations in legal filings. The $110,000 figure will become the benchmark against which future cases are measured. Other judges, faced with similar misconduct, will have a precedent establishing that five-figure sanctions are not excessive but necessary to deter the kind of cavalier use of AI tools that characterized the Brigandi case.

But the opinion also raises uncomfortable questions about the adequacy of professional oversight. How many briefs containing fabricated citations are currently filed in courts across the country every day? How many are caught? How many slip through because opposing counsel does not have the resources or the sophistication to identify hallucinations? How many judges lack the technical knowledge to recognize that a citation is fabricated rather than merely misformatted?

The Brigandi case demonstrates that the legal system has the tools to identify and punish AI-generated misconduct. The question is whether the system has the will and the resources to apply those tools systematically, rather than only when a case happens to land in front of a judge with the curiosity to order forensic analysis.

Conclusion: The Chickens Come Home to Roost

Stephen Brigandi will pay $96,000 in sanctions. His client's entire case will be dismissed. The reputation of his practice will be damaged. Whether he faces further discipline from the State Bar of California remains to be seen, though the precedent established by the Oregon federal court will certainly inform any such proceedings.

But perhaps the most significant consequence is less visible: the chilling effect the decision will have on the casual use of AI tools in legal practice. Brigandi's case is not a story about an attorney who deliberately fabricated citations. It is a story about an attorney who, either through his own negligence or through his client's concealment, allowed AI to do his thinking for him. And it cost him more than $100,000.

That price, finally, is high enough to make lawyers pause.

Sources and Citations

• San Diego Union-Tribune (Apr. 4, 2026). "San Diego attorney hit with one of largest ever sanctions for submitting AI-hallucinated filings." sandiegouniontribune.com
• U.S. Magistrate Judge Mark Clarke, District of Oregon. Opinion and Order (Apr. 4, 2026). Docket 225
• Charlotin, D. (2026). AI Hallucinations in Court Proceedings: Worldwide Tracker. damiencharlotin.com/hallucinations
• Federal Rules of Civil Procedure, Rule 11
• ABA Model Rules of Professional Conduct, Rule 3.3 (candor toward tribunal)