A Florida court has ruled against Capital Standard, LLC, and its representatives in a case involving U.S. Bank National Association. The court's decision, issued on August 21, 2026, emphasizes the importance of accurate legal citations and the dangers of relying on artificial intelligence (AI) in legal documents. The ruling affects not only the parties involved but also serves as a warning to attorneys about the consequences of using unverified AI-generated content.
The case, docket number 2D2024-1392, involved Capital Standard, LLC, along with Vladimir O. Tchentsov and Anna Tchentsov, who appealed a final declaratory judgment in favor of U.S. Bank. The dispute centered around the accuracy and validity of legal arguments presented by Capital Standard. The court found that the arguments presented were not only lacking in merit but also riddled with inaccuracies stemming from the use of generative AI tools.
The parties involved in this case included Capital Standard, LLC, represented by attorney Kenneth H. Keefe, and U.S. Bank National Association, represented by attorneys from McGuireWoods LLP. The appeal arose from a lower court's decision in Pinellas County, where Judge Michael F. Andrews ruled in favor of U.S. Bank. Capital Standard sought to challenge that ruling, leading to this appeal.
The District Court of Appeal of Florida, led by Judge Rothstein-Youakim, affirmed the lower court's judgment, stating that Capital Standard's arguments were without merit. The court noted, "We conclude that Capital Standard's arguments lack merit, and we affirm the judgment in all respects without further comment." However, the court did not stop there; it also imposed sanctions on attorney Kenneth Keefe for his use of fictitious legal citations generated by AI.
The court detailed the extent of the inaccuracies in Keefe's filings, noting that his initial and amended briefs contained numerous instances of what the court described as "hallucinated citations"—legal authorities that do not exist or are misrepresented. The court expressed concern over the increasing reliance on AI tools in legal writing, stating that ignorance of the risks associated with such tools is no longer an acceptable excuse for attorneys.
As a result of these findings, the court sanctioned Keefe with a $1,500 fine and ordered him to pay U.S. Bank's attorney fees incurred in responding to the inaccurate filings. The court also referred him to The Florida Bar for further action, highlighting the serious nature of his misconduct. The court's opinion noted, "We find neither his explanations satisfactory nor him apologetic," indicating a lack of remorse from Keefe regarding the issues caused by his filings.
This ruling has significant implications for the legal profession, particularly as the use of AI in legal practices continues to grow. The court's decision serves as a cautionary tale for attorneys about the potential pitfalls of relying on AI-generated content without thorough verification. It underscores the necessity for legal professionals to maintain high ethical standards and ensure the accuracy of the legal authorities they cite in court documents.
Moving forward, this case may influence how courts handle similar situations involving AI-generated content. The ruling emphasizes the need for attorneys to exercise due diligence when using AI tools in their practice. It also raises questions about the future of AI in the legal field and the responsibilities of attorneys to uphold the integrity of their work.
As for what lies ahead, it remains to be seen whether attorney Kenneth H. Keefe will appeal the sanctions imposed by the court. Given the serious nature of the findings, it is likely that this case will be referenced in future discussions about the ethical use of AI in legal practices. Legal professionals may need to adapt their practices to ensure compliance with evolving standards regarding the use of technology in the courtroom.











