Landberg v City of New York
CA NY (2d) · Jun 23, 2026
- Jurisdiction
- state
- Court
- CA NY (2d)
- Record ID
- landberg-v-city-of-new-york-2026-06-23
- Observed outcome
- The court ordered the attorney to pay $8,000 and the law firm to pay $2,500 to the Lawyers' Fund for Client Protection.
- Known monetary consequence
- $10,500
Why this matter warrants attention
The court imposed a total of $10,500 in monetary sanctions against an attorney and his law firm for filing a brief containing fabricated citations and misrepresentations of law generated by AI. The court found the conduct frivolous, citing the attorney's failure to verify AI output and his lack of candor during proceedings.
The linked source identifies the filing problem as: Brief cited a nonexistent New York case for the standard of appellate review of summary judgment..
The source records a concrete authority-verification problem in a state proceeding and the tribunal’s documented response to it.
Failure modes and consequences
- Fake Citations
- Fabricated Quotes
- Misrepresented Authority
- Tort
- Appellate
- Monetary
- AI attribution
- Admitted
- Recorded tool
- Unidentified generative artificial intelligence
- Known monetary consequence
- $10,500
- Procedural posture
- The court issued an order to show cause on its own motion following oral argument, leading to a formal decision and order on motion imposing sanctions.
Damien Charlotin case archive
Publisher document archive. The recorded document is hosted in the upstream publisher archive.
Open underlying sourceA recorded source link is not a substitute for checking the underlying order, filing, opinion, or disciplinary record.
What this record does—and does not—establish
The attorney admitted to using free, publicly available AI tools.
Limited to the linked source and the documented citation or quotation issue and stated disposition; no unrecorded tool, motive, or broader litigation facts are inferred.
Latest evidence review: Primary Document Verified (high confidence).
Controls suggested by the public record
- Check the cited authority, reporter reference, and pinpoint against the primary source before filing.
- Correct any unsupported citation promptly and preserve the verification record.
- Treat the listed consequence as case-specific rather than as a general rule about AI use.