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Hippe v. Retention Brands, LLC

U.S. District Court, Eastern District of Wisconsin · E.D. Wis. · Wisconsin bar guidance

Conduct

Counsel's unopposed default-judgment motion cited cases the court called fabricated and nonexistent, plus at least two cases irrelevant to the propositions cited.

Consequence

After a show-cause order, plaintiff withdrew its fee request; the court awarded no fees or costs and imposed no further sanction.

Lesson

Here a withdrawn fee request, with a response the court found honest, was treated as "punishment enough" for citation errors in an ADA default judgment.

Other

Verified September 30, 2026

Citation
Hippe v. Retention Brands, LLC, No. 2:25-cv-00596-LA, Order (E.D. Wis. July 15, 2026) (Adelman, J.), ECF No. 16; Decision and Order to Show Cause (E.D. Wis. June 23, 2026), ECF No. 14
Decided
July 15, 2026

Summary

Xinyue Hippe, a legally blind Milwaukee resident, sued Retention Brands, LLC under Title III of the ADA over the accessibility of Birchbox.com. The defendant never appeared, and plaintiff moved for default judgment. On June 23, 2026, Judge Lynn Adelman granted the motion and a permanent injunction but found that "Plaintiff's first citations in paragraphs sixteen and seventeen are entirely fabricated, nonexistent, and bogus." He did not reproduce them, explaining he did "not want false, nonexistent citations to become part of a published record," and noted he could not find any federal case with Thrustmaster of America, Inc. as a party. At least two other citations were "entirely irrelevant" to their propositions: Goodman v. Ill. Dep't of Fin. & Pro. Regul., cited on ADA damages, does not mention the ADA, and Sierra Club v. Franklin Cnty. Power of Ill. concerns a coal power plant. "Hallucinated citations are highly suspicious and typically hallmarks of Artificial Intelligence ("AI") use," the court wrote, adding that "absent counsel's response, I have no way to know whether this is, in fact, the source." It withheld judgment on fees and ordered counsel to show cause why he should not forfeit all attorney's fees and costs as a sanction.

AI tool:
Unidentified (the show-cause order said hallucinated citations are "typically hallmarks of Artificial Intelligence ('AI') use" and that the motion "bears additional AI fingerprints"; counsel's response "did not specifically address" AI use and said he "utilized legal research and drafting tools to assist in the drafting process")
Amount or terms:
No award of attorneys' fees and costs (plaintiff withdrew the request, which the court called "punishment enough"); "No further sanctions will be imposed"
This case summary is informational only. Verify the underlying opinion or order against the primary source before relying on it in any filing or client matter.

How did the court address the AI-related conduct?

Counsel responded on July 14, 2026. In a July 15, 2026 order, Judge Adelman noted that counsel "did not specifically address whether the deficient citations were caused by Artificial Intelligence use" but said he "utilized legal research and drafting tools to assist in the drafting process," which resulted in unverified citations. The court found the explanation "thorough, honest, and reasonable," credited representations that counsel and his firm had taken steps to prevent a recurrence, and observed that "while the citations were inaccurate, the legal premises of the citations were not." Plaintiff had withdrawn any request for attorneys' fees and costs; the court wrote, "I agree that this is punishment enough and will not further sanction counsel," citing Dec v. Mullin, 171 F.4th 940 (7th Cir. 2026). It ordered that plaintiff will not be awarded attorneys' costs and fees, that "No further sanctions will be imposed," and that judgment be entered.

Why does Hippe v. Retention Brands, LLC matter for law firms using AI?

The two Hippe orders show a court moving from suspicion to leniency on the strength of counsel’s response. In the June 23 order, Judge Adelman described the problem bluntly: citations in two paragraphs were “entirely fabricated, nonexistent, and bogus,” at least two more were “entirely irrelevant,” and the motion bore “additional AI fingerprints.” He framed the choice as “[a]t best, this work is sloppy. At worst, it is willfully dishonest,” and directed counsel to explain the source of the inaccuracies, “including whether AI was used,” and why he should nonetheless be awarded fees. He deliberately left the fabricated citations out of the order so they would not enter “a published record which could be cited in the future.”

The July 15 order resolved the matter without further sanction. Counsel did not say whether AI was the cause, describing instead “legal research and drafting tools,” but the court found his explanation “thorough, honest, and reasonable” and credited counsel’s representation that he and his firm had taken steps, while observing that personal verification of every authority “should have always been standard procedure rather than a new policy now implemented.” Because plaintiff had withdrawn its fee request, the court concluded that was “punishment enough,” citing the Seventh Circuit’s decision in Dec v. Mullin.

The matter did not end there for counsel. In Cole v. Hobby Town Unlimited, the Central District of Illinois later identified plaintiff’s counsel here as David Baldemar Reyes, described the Hippe motion as nearly identical to one he filed in Cole “down to the hallucinations,” and, weighing his filings in that case, Hippe, and a Northern District of Illinois matter, fined him $1,000 under Rule 11. Firms documenting compliance may wish to consider that a lenient disposition in one court can become part of the record another court reviews.

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.

  • Verify citations in unopposed motions. The defendant never appeared, and the court identified the problems on its own review of the default-judgment motion.
  • Document what drafting tools were used when responding to a show-cause order. The court's order asked whether AI was used; it noted that the response did not specifically address that question, though it still found the explanation honest.
  • Consider that fee-shifting claims can be the price of citation errors. The show-cause order proposed forfeiture of all attorney's fees and costs as the sanction, and the matter closed with no fee award.
  • Review work product reused across matters. A later order in another district described a nearly identical motion by the same counsel containing the same citations.

Sources

Primary sources

Unverified claims:
  • AI attribution is a Charlotin tracker inference. The June 23 order calls hallucinated citations typical hallmarks of AI use but says the court had no way to know the source; the July 15 order records that counsel did not specifically address AI use. Neither order finds that AI was used.
  • Counsel's July 14, 2026 response (ECF No. 15) was not read; the entry relies on the July 15 order's description of it.