Opinion
GATES, J.Under rule 62 of the California Rules of Court, we here review a municipal court’s order (1) denying a motion to certify a class while (2) simultaneously vacating the unlawful detainer judgments entered by stipulation as to the named individual defendants. Appellants Jesus Martinez and Raymundo Sanchez challenge the former aspect of this order while respondent and cross-appellant William Little challenges the latter.1
*504Appellants assert that respondent “owns hundreds of residential properties in low income areas of Los Angeles. As a landlord, he makes frequent appearances in the unlawful detainer division of the Los Angeles Municipal Court. In fact, a recent examination of the court’s records revealed that during the sixteen month period between December 1, 1981 and March 17, 1983 William Little filed approximately 264 unlawful detainer actions in the Los Angeles Municipal Court.”
Appellants further asserted, and respondent apparently conceded, that respondent in some unspecified fashion had been able to have documents prepared that resembled official court forms and which were captioned “Stipulation for Judgment Unlawful Detainer.” (See appen. A, post, pp. 508-509.) Of the actions filed by respondent during the period specified, 91 allegedly were terminated by the tenants’ signing such documents which were then filed and upon which judgments were entered in conformity with the stipulation.
As can be seen on the face of these remarkable instruments, respondent’s defendant-tenants purported to agree that respondent was entitled to immediate possession of their homes and to the aid of the court in executing that right. In fact in most instances this execution was to be “stayed” only after the tenants, in essence, had made full payment of all their arrearages. More importantly, this stay was thereafter to remain contingent upon the tenants paying to respondent “on the 1st of each and every month [an amount that often far exceeded their scheduled rent] as consideration for the stay herein so long as defendant(s) remain in possession of said premises, no new tenancy being created by said payment.”
These documents even provided that if any portion of the existing arrearages had not already been paid as contemplated, then the tenants’ future payments were to be applied to the monthly “installments” exacted to maintain the “stay” rather than to reduce the only actual indebtedness upon which the judgment could legally have been based. (See Cavanaugh v. Hugh (1960) 182 Cal.App.2d 714, 722-723 [6 Cal.Rptr. 525]; Pfitzer v. Candelas (1921) 53 Cal.App. 737, 741 [200 P. 839].)
Appellants asserted in declarations supporting their motions for class certification and to set aside the judgments entered as to them that they had been unaware of the nature and effect of these “stipulations.” (We attach these declarations as appen. B, post, pp. 510-513.) Respondent did not contest the verity of these averments and, consequently, his contention that the court erred in granting appellants the personal relief they requested is meritless.
Any judgment not based upon a valid waiver of a debtor’s due process rights is voidable at any time. As observed in Cross v. Tustin (1951) *50537 Cal.2d 821, 825 [236 P.2d 142], “a court has inherent power to expunge a fraudulent record or set aside a decree procured by extrinsic fraud. As stated in United States v. Throckmorton, 98 U.S. 61, 65-66 . . ., such action is justified in cases where an unsuccessful party has been prevented from exhibiting fully his case by fraud or deception practiced on him by his opponent, as by keeping him away from court or by a false promise of a compromise; or where the defendant had no knowledge of the suit by being kept in ignorance by acts of the plaintiff; or where an attorney fraudulently or without authority assumes to represent a party and connives at his defeat; or where the employed attorney corruptly sells out his client’s interest to the opponent. There are many instances in this state of the exercise of the power which is deemed not to derive from section 473 of the Code of Civil Procedure and is not limited by any time period. [Citations.]”
Even more significant, the judgments produced by, and subject to, such stipulations as those in Exhibit A, would be void in any event insofar as they purport to terminate the respective defendants’ tenancies and grant respondent a legally enforceable right to dispossess them at any future time without notice or hearing should they fail, for however valid a reason, to pay their monthly installment tributes to him. Manifestly, such a proviso, if afforded any validity whatsoever, would utterly destroy all known rights of landlord and tenant. (See, e.g., Civ. Code, §§ 1941 [landlord’s duty to repair], 1942 [tenant’s right to withhold rent], 1942.5 [retaliatory eviction], 1944-1945.5 [presumed rental periods and automatic renewal of tenancy], 1946 [notice of termination of tenancy]; Code Civ. Proc., § 1161, subd. 2 [notice to quit].) No court may lend its offices and powers to such a scheme. (3) “. . . ‘It is well settled that a judgment or order which is void on its face, and which requires only an inspection of the judgment-roll or record to show its invalidity, may be set aside on motion at any time after its entry, by the court which rendered the judgment or made the order. [Citations.]’ ” (Hayashi v. Lorenz (1954) 42 Cal.2d 848, 851 [271 P.2d 18].)
Regrettably the trial court here gave no explanation for its refusal to certify as a class all those other defendant-tenants against whom similar void judgments had been entered.2 Its determination of this motion does not ap*506pear to have involved any factual issues which turned upon the credibility of the parties, and in truth, respondent did not contest the averments set forth in appellants’ supporting declarations. If, as appellants indicate, the court’s decision was premised upon a belief that it lacked all jurisdiction in the premises, it was mistaken.
Proceeding collectively by means of a class is a form of remedy, not a cause of action in and of itself. Municipal courts are given jurisdiction over all unlawful detainer actions falling within specified monetary limits (Code Civ. Proc., § 86, subd. (a)(4)), equitable powers generally (id., subd. (b)), and specifically the ability, in appropriate instances, to vacate judgments. (Id., subd. (b)(3).) There is nothing to be found in Code of Civil Procedure section 382, the section authorizing class actions, which might suggest that it is inapplicable to the municipal court. (See Comment, Tenants in Court: The Class Action (1971) 3 U.C. Davis L.Rev. 101.) On the other hand, Civil Code sections 1780 and 1781 appear to expressly recognize that court’s jurisdiction in consumers’ actions. (See also Kennedy v. Domerque (1955) 137 Cal.App.2d Supp. 849 [290 P.2d 85].) Too, a comprehensive set of rules governing civil law and motion practice and procedure in all trial courts, superior, municipal and justice, became effective January 1, 1984. (Cal. Rules of Court, rule 301 et seq.) One of the newly adopted rules establishes a procedure for seeking dismissal of all or part of a class action. (Rule 365.)
Respondent’s suggestion that the court’s ruling may be upheld because appellants, the named members of the class, are “strangers” to the judgments entered as to respondent’s other tenants, fails to grasp the nature of a class proceeding. Similarly inapposite is his argument that the amount of money he sought in all these actions, taken collectively, may have exceeded the court’s jurisdiction. The object of appellants’ class action was not the recovery of monetary damages, or monies in any sum; it sought merely to preclude the possibility that writs of execution might issue upon judgments that were void, at least to the extent they had been “stayed” contingent upon the payment of future “installments.”
Equally unavailing is respondent’s contention that there is an insufficient “numerosity” of potential class members, i.e., tenants against whom he has obtained judgments by means of his form stipulation. A potential class of 90 such persons is not inadequate, particularly in light of appellants’ uncontested assertions that respondent’s tenants are primarily poor, unsophisticated and often unversed in the English language.
Finally, respondent errs in suggesting that a decision that would prevent execution from issuing on the challenged judgments, at least to the limited *507extent here sought, would require resolving diverse factual questions. Essentially but one question need be determined and that question is common to all, i.e.: “Is this a judgment entered upon a stipulation that purports to stay its execution only so long as future ‘installment payments’ are made?”
Nonetheless, we recognize that by now the municipal court on its own initiative already may have corrected its records to prevent the possibility that ex parte writs of execution will issue in any of the challenged unlawful detainer actions, or that it intends to, and is, moving to achieve this desired result by some other means which it deems more desirable than a class proceeding. Due to its inherent complexities, a class action will rarely be appropriate in the municipal court, and even less frequently will it constitute the remedy of choice. Therefore, we shall not explicitly direct the certification of the instant action, but will merely remand it for further proceedings not inconsistent with this decision.
The order under review, insofar as it denies class certification is reversed and remanded for reconsideration; in all other respects the order is affirmed.
Compton, Acting P. J., and Beach, J., concurred.
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For convenience and purposes of clarity Martinez and Sanchez shall henceforth be referred to simply as “appellants,” while Little, although also a cross-appellant, will be denominated “respondent.”
Initially appellants relied rather heavily upon County of Ventura v. Tillen (1982) 133 Cal.App.3d 105 [183 Cal.Rptr. 741], to support their contention that the many judgments they wished to challenge were void in their entirety because the stipulations upon which they were based did not, on their faces, demonstrate that the defendants named therein knew of their various judicial rights, and that with such knowledge they had made voluntary and intelligent decisions to waive those rights. It is possible, therefore, that the trial court rejected this basis for class certification because it correctly anticipated our Supreme Court’s later disapproval of this aspect of Tillen in County of Los Angeles v. Soto (1984) 35 Cal. 3d 483, 492, fn. 4 [198 Cal.Rptr. 779, 674 P.2d 750], However, even when this basis for certification is eliminated, the subject judgments nonetheless remain void insofar as their enforcement is made contingent upon respondent’s tenants making the required future “installment payments.”