OPINION Breann and Robert Waterhouse appeal the denial of their Texas Citizens Participation Act (“TCPA”) motion asserted in litigation with their former landlords, Stephanie Harrison and Fnu GoFit, also known as Charles D. Harrison.[1] We do not reach the merits, however, because the TCPA motion was rendered moot when the trial court dismissed the underlying claims before the motion was denied as a matter of law. Accordingly, we dismiss this case for lack of jurisdiction. Factual and Procedural Background Appellants rented a house from Appellees from August 1, 2019 through January 31, 2021. After Appellees declined to renew the lease and Appellants vacated the property, Appellees returned the balance of Appellants’ $1,850 security and pet deposits—which was just $8—with an accounting of itemized deductions as required by Texas Property Code Section 92.104. Dissatisfied with this amount, Appellants responded by sending Appellees a demand letter, alleging Appellees improperly withheld their security deposit to make the home ready for sale, not, as Appellees claimed, for necessary repairs and cleaning. Appellants sued Appellees[2] on March 25, 2021, claiming, among other things, fraud and Texas Deceptive Trade Practices violations, and asking the court for declaratory judgment that because they constructively performed labor and/or furnished materials to improve Appellees’ property, Appellants now owned an interest in the property. The following day, Appellants filed a notice of lis pendens based on their alleged interest in the property. On March 29, 2021, the County Court at Law Number 3 entered a temporary restraining order and set a permanent injunction hearing. Appellees then filed an emergency motion to expunge the lis pendens, contending Appellants’ purported interest in the property has no basis in Texas law. Appellees also filed a motion for sanctions under Chapter 10 of the Texas Civil Practice and Remedies Code and Texas Rule of Civil Procedure 13. Appellants moved to dismiss both the emergency motion to expunge and motion for sanctions under the TCPA, and requested attorney’s fees and sanctions under that statute. The trial court dismissed Appellees’ emergency motion to expunge on April 23, 2021, and their motion for sanctions on April 28, 2021. On May 3, 2021, Appellees filed with the district clerk a motion for judicial review of documentation or instrument purporting to create a lien or claim under Texas Government Code section 51.903. On June 17, 2021, the County Court at Law No. 7 issued findings of fact and conclusions of law in which it ruled the documentation purportedly substantiating the lis pendens created no valid lien or claim on the subject property. Meanwhile, Appellants’ TCPA motion was denied as a matter of law on June 14, 2021. See TEX.CIV.PRAC.&REM.CODE ANN. § 27.008(a)(“If a court does not rule on a motion to dismiss under Section 27.003 in the time prescribed by Section 27.005, the motion is considered to have been denied by operation of law and the moving party may appeal.”). In this case, Appellants ask us to grant their TCPA motion, award statutory attorney’s fees, and levy sanctions against Appellees. Specifically, Appellants raise two issues on appeal: whether (1) Appellees’ motion to expunge lis pendens violates the TCPA; and (2) Appellees’ motion for sanctions violates the TCPA. Before reaching the merits, however, we must consider whether Appellants’ TCPA claim is moot. Standard of Review The mootness doctrine implicates subject-matter jurisdiction, which we review de novo. David Powers Homes, Inc. v. M.L. Rendleman Co., Inc., 355 S.W.3d 327, 333–34 (Tex.App.— Houston [1st Dist.] 2011, no pet.). Analysis Appellants moved to dismiss Appellees’ emergency motion to expunge and motion for sanctions under the TCPA; however, the trial court dismissed both of Appellees’ motions before Appellants’ TCPA motion was denied by operation of law. Accordingly, we must first decide whether this case is moot. If so, we do not have jurisdiction and must dismiss the case. A case is moot when there is no longer “a justiciable controversy between the parties or when the parties cease to have ‘a legally cognizable interest in the outcome.’” State ex rel. Best v. Harper, 562 S.W.3d 1, 6 (Tex. 2018)(quoting Williams v. Lara, 52 S.W.3d 171, 184 (Tex. 2001)). If events make it impossible for the court to grant the relief requested or otherwise affect the parties’ rights or interests, the case is moot. Id. If a case is moot, we do not have jurisdiction and cannot hear the case because our decision would “constitute an advisory opinion that is ‘outside the jurisdiction conferred by Texas Constitution article II, section 1.’” Id. (quoting Matthews v. Kountze Indep. Sch. Dist., 484 S.W.3d 416, 418 (Tex. 2016)). Though Appellants argue otherwise, Appellees contend Appellants’ TCPA motion became moot as soon as the trial court dismissed the two motions on which it was based.[3] Thus, Appellees argue, because they do not appeal the dismissal of these two motions,[4] this case is solely based on Appellants’ attempt to recover attorney’s fees for their time spent preparing the TCPA motions or to have sanctions awarded against Appellees. Indeed, Appellants ask us to award attorney’s fees and sanction Appellees and their attorneys under the TCPA. The Texas Supreme Court has recognized that in certain cases, a claim for attorney’s fees can “breathe[] life” into a suit that has otherwise become moot. Id. at 7 (citing cases). Whether a request for an award of attorney’s fees and sanctions presents an issue that survives an otherwise moot appeal depends first on the statute under which the claimant seeks the fees. Id. If the claimant seeks fees under a statute which authorizes fees only for the prevailing party, the determination whether the fees claim is moot depends on whether the claimant prevailed before the underlying substantive claim became moot. Id. The TCPA is a prevailing-party statute. See TEX.CIV.PRAC.&REM.CODE ANN. § 27.009(a) (providing when the trial court orders dismissal of a legal action under the TCPA, it “shall award to the moving party court costs and reasonable attorney’s fees incurred in defending against the legal action”). Appellants’ TCPA motion was denied by operation of law after the trial court dismissed Appellees’ emergency motion to expunge and motion for sanctions. Thus, Appellants’ attorney’s fees and sanctions claim became moot along with the underlying TCPA claim because they did not prevail before mootness occurred. In other words, this claim is moot because Appellants “can never prevail and thus can never be entitled to attorney’s fees.” See Best, 562 S.W.3d at 7–8 (citing Speer v. Presbyterian Child.’s Home & Serv. Agency, 847 S.W.2d 227, 229– 30 (Tex. 1993)); see also Glassdoor, Inc. v. Andra Grp., LP, 575 S.W.3d 523, 531 (Tex. 2019) (dismissing case as moot because TCPA movants were not prevailing parties before the underlying substantive claim became moot). Accordingly, without reference to the merits, we dismiss this case for want of jurisdiction. October 24, 2022 YVONNE T. RODRIGUEZ, Chief Justice Before Rodriguez, C.J., Palafox, and Alley. JJ.