Quandel Construction Group, Inc. v. Hunt Construction Group, Inc.
S.D. Ohio · Mar 31, 2026
What happened in this matter?
The court ordered defense counsel to provide individual sworn statements explaining the origin of fabricated citations and nonexistent quotations in their briefing. While the court acknowledged counsel's denial of AI usage, it mandated a formal inquiry into the research and verification process to ensure compliance with Rule 11 duties.
- Why the court cared
- The court reasoned that regardless of whether AI was used, counsel has an affirmative duty under Rule 11 to conduct a reasonable inquiry into the law and verify all citations. The court found that the submission of nonexistent cases and quotations undermines the judicial process and requires a formal explanation from counsel to ensure professional accountability.
- Why it matters now
- Match case name, docket number, and quoted language to the opinion itself — mismatches now generate show-cause orders.
Why this matter is tracked
In a contract dispute, Defendant Hunt Construction Group, Inc. submitted an opposition brief containing fabricated case citations and nonexistent quotations attributed to a misidentified Aerpio Pharmaceuticals case. Plaintiff Quandel identified the errors, prompting Hunt to move to amend its filing. Hunt denied using artificial intelligence, attributing the errors to research mistakes. The court granted the motion to amend but expressed significant concern regarding the failure to verify legal authority. Citing Rule 11 obligations, the court ordered Hunt’s counsel to submit individual sworn statements detailing their roles in the research, drafting, and cite-checking process, and to confirm whether any AI tools were utilized in the preparation of the erroneous memorandum.
Match case name, docket number, and quoted language to the opinion itself — mismatches now generate show-cause orders.
Record details
What the record establishes about AI use
AI (implied, unspecified) is recorded in the source dataset; confirm the basis in the linked document.
The court granted the defendant's motion to amend its opposition brief and ordered defense counsel to submit sworn declarations regarding their research and verification processes.
Correction behavior is not separately verified in the current record.
Tracked discrepancy record
3 citation, quotation, or authority issues are recorded in the source dataset.
- Fabricated: Case Law | Hunt cited a nonexistent Aerpio case and incorrect citation (wrong case name/number and Westlaw cite); court identified the correct case as Aerpio Pharms., Inc. v. Quaggin, 2019 WL 4717477 (S.D. Ohio Sept. 26, 2019).
- False Quotes: Case Law | Hunt included three direct quotations attributed to the (mis)cited Aerpio decision that do not appear in the actual Aerpio v. Quaggin opinion; court found only the phrase "inextricably intertwined" actually appears in the real case.
- Misrepresented: Case Law | Hunt cited the wrong Vaughn case name and provided an unrelated case number; court found the error was wrong in form though the quoted substance was unchanged.
Questions this record answers
- What happened in Quandel Construction Group, Inc. v. Hunt Construction Group, Inc.?
- The court ordered defense counsel to provide individual sworn statements explaining the origin of fabricated citations and nonexistent quotations in their briefing. While the court acknowledged counsel's denial of AI usage, it mandated a formal inquiry into the research and verification process to ensure compliance with Rule 11 duties.
- Why does Quandel Construction Group, Inc. v. Hunt Construction Group, Inc. matter for legal AI risk?
- Match case name, docket number, and quoted language to the opinion itself — mismatches now generate show-cause orders.
- What does the public record establish about Quandel Construction Group, Inc. v. Hunt Construction Group, Inc.?
- The record summarizes the outcome described in the linked public source. The recorded document is hosted in the upstream publisher archive. This page is not a substitute for the complete docket, subsequent history, or jurisdiction-specific advice.
- Which source supports this Quandel Construction Group, Inc. v. Hunt Construction Group, Inc. summary?
- The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.
Related matters
Related by court, jurisdiction, tool, or classified failure pattern. Similarity does not imply the same facts or outcome.