Ninth Circuit Sanctions Attorneys for AI-Hallucinated Immigration Briefs

The Ninth Circuit has sanctioned immigration attorneys after briefing in an asylum, withholding, and CAT case included nonexistent cases, fabricated quotations, and mischaracterizations of real authority. The Court emphasized that the use of AI is not itself sanctionable, but that signing and filing briefs containing false authorities and unsupported propositions violates counsel’s obligations.

The Court imposed monetary sanctions, suspended the attorneys from Ninth Circuit practice for six months, referred the matter to the California State Bar, and required future Sethi Law Group filings to disclose whether AI was used and to certify that all citations and quotations were personally verified by the signing attorney. The Court also explained that when an attorney discovers a hallucinated citation, simply replacing it without disclosing the fabrication is insufficient.

The full text of Lnu v. Blanche can be found here: https://cdn.ca9.uscourts.gov/datastore/opinions/2026/06/03/24-4790.pdf

Seventh Circuit Denies Cancellation Petition and Sanctions Counsel for AI-Hallucinated Brief

The Seventh Circuit has denied a petition for review filed by a Mexican respondent who sought non-LPR cancellation of removal. The agency denied cancellation based on a domestic violence conviction and, independently, because the respondent failed to establish exceptional and extremely unusual hardship to his U.S. citizen wife.

The Court held that Illinois battery under 720 ILCS 5/12-3(a)(1) qualifies as a crime of violence and that the respondent’s mother and siblings were protected family members for purposes of the domestic violence ground. The Court also found that the hardship issue was waived and, alternatively, that substantial evidence supported the agency’s hardship determination. The Court sanctioned counsel $5,000 after the opening brief included fabricated quotations, misstated cases, and record assertions contradicted by the evidence.

The full text of Perez-Castillo v. Blanche can be found here: https://media.ca7.uscourts.gov/cgi-bin/OpinionsWeb/processWebInputExternal.pl?Submit=Display&Path=Y2026/D06-01/C:25-1988:J:Brennan:aut:T:fnOp:N:3550588:S:0

Seventh Circuit Finds no Jurisdiction to Review Denial of Unlawful Presence Waiver

The Seventh Circuit has determined that federal courts lack jurisdiction to review the denial of an unlawful presence waiver. The Seventh Circuit also addressed the use of generative AI in brief writing.

The full text of Dec v. Mullin can be found here: https://media.ca7.uscourts.gov/cgi-bin/OpinionsWeb/processWebInputExternal.pl?Submit=Display&Path=Y2026/D03-30/C:25-2417:J:Brennan:aut:T:fnOp:N:3514236:S:0