Michael Thomson v. Aria Resort and Casino; MGM Resorts International

District Court, D. Nevada·Decided August 5, 2026·No. 2:25-cv-02459·Unknown

Opinion

MICHAEL THOMSON, Case No. 2:25-cv-2459-ART-BNW

Plaintiff, ORDER ON MOTION TO DISMISS v. (ECF No. 7)

ARIA RESORT AND CASINNO, et al.,

Defendants.

Plaintiff Michael Thomson sues Aria Resort and Casino (“Aria”) and MGM Resorts International (“MGM”). He alleges that they violated their duties towards him when they allowed him, or someone acting as him, to take out $75,000 in markers while he was incapacitated, and then used the criminal legal process to obtain restitution from him without investigating the validity of the markers. (ECF No. 1.) Aria and MGM move to dismiss. (ECF No. 7.) The Court now grants in part and denies in part the motion to dismiss. I. Factual Background The following facts are taken from Plaintiff’s complaint. (ECF No. 1.) On the night of January 23, 2024, Plaintiff Michael Thomson was playing blackjack in the high-limit room at Aria Casino and Resort. He recalls taking out one marker for $10,000, which he repaid that night. He also recalls leaving the high-limit room for his hotel room around midnight with a few thousand dollars’ worth of chips. Mr. Thomson has a gap in his memory from midnight on the night of January 23 until the late morning of January 24. He believes he was “surreptitiously drugged on the night of January 23 or morning of January 24, 2024, which led to his complete incapacity.” (Id. ¶ 41.) He remembers waking up in the (late) morning of January 24, handcuffed to the wall in the Casino security holding room. He was told that he was found asleep in the Sky Suites lounge, and upon waking up, allegedly lashed out at the security guards and was detained. He was then trespassed from the casino. On the morning of January 25, he spoke with an Aria host about what happened on the night before. The host told him that he had an outstanding marker balance. Mr. Thomson “expressed concern” and “asked for further details,” which Aria didn’t provide. (Id. 1 ¶ 26.) Aria then obtained a variance report from an unknown, possibly internal source. It’s unclear what the variance report says, but Plaintiff says that there’s no indication that it resolved the discrepancy. On May 10, 2025, Mr. Thomson received a call from his bank that $75,000 of ostensible markers had been submitted for payment. Mr. Thomson instructed the bank not to pay, having no memory of taking out the markers and having received no communication from Aria addressing the concern regarding the validity of the outstanding balance. As Mr. Thomson had instructed, five of the markers were returned to Aria “not authorized” by the bank, and the remaining three were marked “NSF.” Aria apparently told Mr. Thomson that he took out eight markers totaling $75,000 between 3:00am and 9:00am on January 24. Plaintiff says that the signature on the markers only loosely resembles his own. Mr. Thomson says he asked Aria for additional information several other times about the alleged markers, but received no substantive response. Aria subsequently turned the markers over to the Clark County District Attorney’s Office, Bad Check Unit, which filed several complaint forms against Plaintiff. Plaintiff was charged with (1) drawing and passing a check without sufficient funds with intent to defraud and (2) theft in Clark County Justice Court Case No. 24-CR-097831. Mr. Thomson was subsequently arrested. He paid over $15,000 in bail, which he alleges was then paid to Aria minus administrative fees, and then “agreed to pay restitution to eliminate the stress of having an open, pending criminal case against him and Case No. 24-CR-097831 was dismissed.” (Id. ¶ 40.) Defendants agree that “the Criminal Action was dismissed solely because Plaintiff agreed to pay restitution to Aria.” (ECF No. 7 at 14.) Mr. Thomson now alleges that he was deliberately surreptitiously drugged on the night of January 23 or the morning of January 24, that his incapacity would have been obvious to Aria’s employees and agents, that Aria nonetheless allowed him to continue gambling and then detained him, and that the signature on the markers was not his. Mr. Thomson alleges that further information is within the exclusive knowledge of the Defendants. He sues for declaratory relief, negligence, Unfair or Deceptive Trade Practices (NDTPA) pursuant to NRS Chapter 598, unjust enrichment, breach of the implied covenant of good faith and fair dealing, malicious prosecution, and respondeat superior. All claims are against Aria only, except for respondeat superior, which is only brought against MGM, Aria’s parent company. Aria and MGM have jointly filed a 12(b)(6) Motion to Dismiss (ECF No. 7.) Their arguments are that many of Mr. Thomson’s claims fail as a matter of law because he ratified the markers by paying restitution in the criminal case; his negligence claim is barred by the economic loss doctrine; his NDTPA claim failed because the NDTPA does not cover credit transactions or conduct in compliance with another rule or order, and Plaintiff fails to meet the heightened pleading standard for fraud under Rule 9; he has not alleged a favorable termination of the criminal case, which is required to plead malicious prosecution; and respondeat superior is not a standalone cause of action. II. Legal Standard A court may dismiss a complaint for “failure to state a claim upon which relief can be granted.” Fed. R. Civ. P. 12(b)(6). A properly pleaded complaint must provide “a short and plain statement of the claim showing that the pleader is entitled to relief.” Fed. R. Civ. P. 8(a)(2); Bell Atlantic Corp. v. Twombly, 550 U.S. 544, 555 (2007). While Rule 8 does not require detailed factual allegations, it demands more than “labels and conclusions” or a “formulaic recitation of the elements of a cause of action.” Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009) (citing Twombly, 550 U.S. at 555). “Factual allegations must be enough to rise above the speculative level.” Twombly, 550 U.S. at 555. A complaint must contain sufficient factual matter to “state a claim to relief that is plausible on its face.” Iqbal, 556 U.S. at 678 (quoting Twombly, 550 U.S. at 570). Under this standard, a district court must accept as true all well-pleaded factual allegations in the complaint and determine whether those factual allegations state a plausible claim for relief. Id. at 678–79. If the Court grants a motion to dismiss for failure to state a claim, leave to amend should be granted unless it is clear that the deficiencies of the complaint cannot be cured by amendment. DeSoto v. Yellow Freight Sys., Inc., 957 F.2d 655, 658 (9th Cir. 1992). Pursuant to Rule 15(a), the court should "freely" give leave to amend "when justice so requires," and in the absence of a reason such as "undue delay, bad faith or dilatory motive on the part of the movant, repeated failure to cure deficiencies by amendments previously allowed, undue prejudice to the opposing party by virtue of allowance of the amendment, futility of the amendment, etc." Foman v. Davis, 371 U.S. 178, 182 (1962). III. Discussion A. Declaratory Relief Mr. Thomson’s declaratory judgment claim survives Aria’s motion to dismiss. Aria’s only argument for dismissal is that upon sobering up, Mr. Thomson did not disaffirm the markers, and that if he did, he ratified them when he paid restitution in his criminal case. Whether Mr. Thomson ratified the markers is not appropriate to decide at the pleadings stage. “Generally, contract ratification is the adoption of a previously formed contract, notwithstanding a quality that rendered it relatively voi

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Michael Thomson v. Aria Resort and Casino; MGM Resorts International, (D. Nev. 2026).

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