Padilla v. Costco Wholesale Corporation
- Edward Chen
- 3:25-cv-07408
- U.S. District Court · Northern District of California
- 6
In Maria Ramirez Padilla v. Costco, Judge Chen remanded the slip-and-fall case to state court and denied fees.
Maria Ramirez Padilla’s case will return to California state court. Costco’s removal was undone, William Wayne Thomas was allowed to be joined as a defendant, and Plaintiff received no attorney’s-fee award.
What happened
Maria Ramirez Padilla sued Costco Wholesale Corporation and others in California state court after she slipped on a clear liquid at a Costco property. Costco moved the case to federal court, arguing that the parties were citizens of different states and that two in-state defendants had been improperly included.
The court found that Steven Chamberlain was a Washington citizen, but discovery identified “Wayne Doe” as William Wayne Thomas, a California citizen who had been an assistant general manager at the Costco involved in the incident. The court concluded that California law could allow a negligence claim against a store manager, even one who was not present on the day of the fall.
Judge Edward M. Chen granted the motion for remand and denied Maria Ramirez Padilla’s request for fees. The court allowed Thomas to be joined as a defendant, which eliminated complete diversity between the parties and required the case to return to state court. The court denied fees because Costco had an objectively reasonable basis for removing the case.
The detailed version
- Padilla v. Costco Wholesale Corporation · No. 3:25-cv-07408
- Edward Chen
- Dec. 15, 2025
Background
Maria Ramirez Padilla filed state-law claims for general negligence and products liability in California state court. She alleged that she slipped and fell at Costco’s Concord property because of a clear liquid on the floor and that Costco and its agents failed to warn about or correct the dangerous condition.
Costco removed the case to federal court based on diversity jurisdiction and fraudulent joinder. Diversity jurisdiction generally requires complete diversity between opposing parties. The complaint named Steven Chamberlain and “Wayne Doe” as defendants, identifying them only as Costco agents and employees. Costco submitted evidence that Chamberlain lived and worked in Washington and had Washington as his permanent home. Costco also submitted evidence that no employee named Wayne had worked at the Concord Costco on the day of the incident.
Plaintiff’s counsel provided information suggesting that “Wayne Doe” was William Wayne Thomas, a former manager at the Concord Costco. After hearing argument, the court permitted limited jurisdictional discovery concerning Chamberlain’s citizenship and the identity of “Wayne Doe.” The discovery confirmed that Chamberlain was a Washington citizen and that “Wayne Doe” was Thomas, a California citizen who was an assistant general manager at the Concord Costco when the incident occurred. Thomas was not working at the store on the day of the alleged fall.
Remand
The court held that Thomas was not fraudulently joined. Under California law, a store manager may be individually liable for negligence, and the court cited authority indicating that a manager need not be present on the day of an injury for premises liability to apply. The court therefore found that Plaintiff could potentially assert a negligence claim against Thomas in state court.
The court explained that fictitious defendants ordinarily are disregarded when determining whether a case may be removed. But it treated Plaintiff’s supplemental brief as seeking permission under 28 U.S.C. § 1447(e) to join the now-identified Thomas. The court found joinder appropriate because Thomas had been part of the lawsuit from the beginning under the placeholder name, Plaintiff had lacked information needed to identify him, and the claims against him appeared viable. The court also found that requiring Plaintiff to bring a separate state-court action against Thomas would be unduly prejudicial.
Because Thomas was a California citizen, joining him eliminated complete diversity. The court therefore granted Plaintiff’s motion for remand, requiring the case to return to state court.
Fees
Plaintiff also requested attorney’s fees under 28 U.S.C. § 1447(c), which permits a court to award fees in connection with a remand when the removing party lacked an objectively reasonable basis for removal. The court found that Costco had such a basis. At the time of removal, the named defendants appeared to be diverse, Chamberlain was in fact a Washington citizen, and federal law generally directs courts to disregard fictitious defendants when evaluating diversity jurisdiction.
The court also found that Plaintiff’s unsupported accusation that Costco routinely removes diversity cases regardless of their merits did not establish the unusual circumstances needed to award fees. The court denied Plaintiff’s motion for fees.
Disposition
Plaintiff’s motion for remand was GRANTED. Plaintiff’s motion for fees was DENIED.
Read the full 6-page opinion on CourtListener, the free public archive maintained by the Free Law Project.