Souza v. City of Fitchburg
U.S. District Court, District of Massachusetts · D. Mass. · Massachusetts bar guidance
Conduct
Pro se civil rights plaintiff suing the City of Fitchburg relied on generative AI to draft his filings, including his opposition brief.
Consequence
Case dismissed on the merits; court issued a footnote warning that generative AI is unreliable and may hallucinate caselaw. No sanction.
Lesson
D. Mass. judges are flagging AI-drafted pro se filings in footnotes even when the AI issue does not affect the merits ruling.
Verified May 14, 2026
- Citation
- Souza v. City of Fitchburg, No. 4:25-cv-40089-MRG (D. Mass. Mar. 30, 2026) (Guzman, J.)
- Decided
- March 30, 2026
Summary
Samuel Souza, proceeding pro se, brought a civil rights action against the City of Fitchburg and five municipal officials (Stephen D. Curry, Donna R. Pawlak, Mark Barbadoro, Sally Cragin, and Paul Beauchemin) in the District of Massachusetts arising from proceedings declaring his dogs a nuisance. In a March 30, 2026 order granting the defendants' motion to dismiss in full, District Judge Margaret R. Guzman noted in a footnote that it was "apparent to the Court that Plaintiff relied on generative AI in multiple instances to create his filings," pointing to his opposition brief, where the generative AI program appeared to address the plaintiff directly using "you" and "your." The court warned Souza that generative AI is unreliable for legal assistance and often hallucinates law and caselaw.
- AI tool:
- Generative AI (court found the pro se plaintiff relied on generative AI to draft his filings; specific tool not identified)
What sanction did the court impose?
Defendants' motion to dismiss granted in full; case dismissed on the merits on Rule 12(b)(6) grounds unrelated to the AI issue. No monetary or procedural sanction for the AI use. The court issued a footnote warning that generative AI is unreliable for legal assistance and may fabricate causes of action and caselaw.
Why does Souza v. City of Fitchburg matter for law firms using AI?
Souza v. City of Fitchburg is one of several Judge Margaret R. Guzman AI-related orders surfaced on the Charlotin tracker in March 2026. The AI issue appears in a footnote: the court found it “apparent” that the plaintiff relied on generative AI to create his filings, pointing to his opposition brief, where the AI program appeared to address the plaintiff directly with “you” and “your.” The court dismissed the case in full on Rule 12(b)(6) grounds unrelated to the AI use, and the AI discussion took the form of a warning rather than a sanction. Cross-reference: Etten v. Fattman (D. Mass. Mar. 6, 2026) for a citations-side counterpart in the same chambers, 24 days earlier.
Implications for your firm
Operational steps a firm reading this case may wish to consider documenting. Strategic and rule-application calls belong to your firm's attorneys.
- Screen pro se filings for tell-tale generative-AI texture: the court here keyed on the AI program addressing the litigant directly with 'you' and 'your,' a drafting artifact distinct from fabricated citations.
- Track District Judge Margaret R. Guzman's emerging chambers practice on AI-drafted filings; she has multiple Charlotin-tracked orders concentrated in March 2026.