Civil Litigation

Nullity of Real Estate Contracts: Causes and Procedure

March 15, 2026 — Enrique Benet-Gregg

Regime of Nullities in Real Estate Purchase and Sale Contracts: Fundamental Distinctions and Restitutionary Consequences

The incorrect classification of the type of nullity applicable to a defective real estate transaction is, in litigation practice, the most frequent source of procedural failure: it determines whether the action has prescribed, who is legitimated to exercise it, whether the act may be ratified, and what effects the judgment produces against third parties in the registry. This article analyzes the regime of nullities in real estate purchase and sale contracts under Mexican law, with emphasis on the operative distinctions between absolute and relative nullity, the restitutionary consequences of each, and the specific risks faced by investors and developers operating in Quintana Roo and the Riviera Maya.

Applicable Regulatory Framework

The general regime of nullities in civil matters is articulated principally through the Federal Civil Code (CCF). The validity requirements for contracts are established in article 1795, while the specific vices of consent, their consequences, and the prescription periods for the action of relative nullity are regulated in articles 1812 to 1838 of the same ordinance. The reference to the block 1795 to 1840 as unitary is technically imprecise: articles 1839 and 1840 address matters adjacent to contract structure that transcend the strict regime of invalidity; therefore, the substantive provisions of the regime of nullities must be identified within the range 1795 to 1838 of the CCF.

In Quintana Roo, the ordinance applicable to the majority of purchase and sale operations between private parties is the Civil Code of the State of Quintana Roo (CCQR), whose articles 1746 to 1805 establish the specific regime of invalidity of juridical acts. The purchase and sale contract is valid when the following concur: capacity of the parties, consent free of vices, lawful and possible object, and lawful cause or determining motive, in accordance with article 1795 of the CCF and its correlative in the CCQR. The absence or deficiency of any of these elements activates the regime of nullities.

Absolute Nullity: Causes and Effects

Absolute nullity operates when the juridical act contravenes norms of public policy or good customs. In real estate matters, the most frequent scenarios include: the sale of real property in the federal maritime-terrestrial zone without the corresponding concession provided for in the General Law of National Assets, article 7; the alienation of real property subject to constitutional restrictions applicable to foreigners without complying with the trust regime established in the Foreign Investment Law, article 11; and the absolute simulation of contracts to the detriment of third-party creditors, regulated in article 2180 of the CCF.

The consequences are unequivocal: absolute nullity is imprescriptible, may be invoked by any interested party, does not admit ratification, and obligates the judge to declare it ex officio when proven. The reciprocal restitution of performances is an inescapable consequence; the seller restores the price and the purchaser the real property, without the good faith of the acquirer generating by itself a right of retention against the action of nullity.

Alienation of Ejidal Land Without Full Ownership: The Most Frequent Source of Absolute Nullity in Quintana Roo

On the Quintana Roo coast, the most recurrent cause of absolute nullity does not derive from formal defects in the execution of the deed but from the alienation of land parcels with a history of ejidal ownership that have not been regularized in accordance with the legally required procedure. The Agrarian Law, in its articles 80 to 84, establishes that ejidatarios may only alienate their parcels to third parties outside the agrarian nucleus once they have adopted full ownership of such parcels through the procedure of assignment of rights and the corresponding registration before the National Agrarian Registry (RAN). Full ownership is acquired by resolution of the ejidal assembly duly executed in a public deed and registered, which converts ejidal regime lands into full private property capable of circulating in the ordinary real estate market.

The purchase and sale of an ejidal parcel that has not completed this regularization process constitutes a juridical act null of full right for contravening norms of public agrarian policy. Such nullity is absolute: it does not prescribe, cannot be ratified by the parties, and operates independently of the good faith of the acquirer or the price paid. The frequency of this defect in coastal tourist and residential developments converts the verification of agrarian status into the due diligence step of greatest practical importance prior to closing any transaction with a chain of title that includes surfaces originally ejidal.

The due diligence steps to confirm regularization prior to closing a transaction with ejidal background comprise the following elements: obtain from RAN the certificate of registration of full ownership of the specific parcel; verify in the ejidal assembly minutes that the selling ejidatario complied with the procedure of article 81 of the Agrarian Law, including the notice of preference to spouse and neighboring landowners; confirm that the parcel does not form part of common use areas or human settlement areas, which remain subject to special regime; and compare the surface area and location of the agricultural title with the boundaries of the property to be acquired to rule out partial overlap with surfaces not yet regularized. Omission of any of these steps exposes the acquirer to absolute nullity of the transaction, without right to retain the property and without the possibility of confirming the act.

Relative nullity protects a particular interest. Its typical causes in real estate transactions are: error as to the identity or essential qualities of the property (article 1813 CCF); fraud or bad faith of the seller in concealing encumbrances, pending litigation, or urban planning impacts (articles 1815 and 1816 CCF); violence in any of its forms (article 1819 CCF); and lesion when there is manifest disproportion between the performances due to exploitation of the necessity or inexperience of the acquirer, in accordance with article 17 of the CCF and the corresponding article of the CCQR.

Unlike absolute nullity, relative nullity is susceptible to confirmation by the party entitled to allege it, and expires in accordance with the deadlines established in article 1838 of the CCF: two years from the date of execution of the act or from when the defect causing it ceases. Only the party who suffered the defect, or their successors in interest, may assert it.

The Nullity Procedure: Critical Litigation Aspects

The action for nullity is processed through the ordinary civil proceeding before the courts of the place where the property is located. For the generality of real estate disputes that are heard before the state common courts in Quintana Roo, the applicable territorial jurisdiction rule is the corresponding article of the Code of Civil Procedures of the State of Quintana Roo (CPCQR) which establishes the jurisdiction of the judge of the place where the immovable property subject to the dispute is located. The Federal Code of Civil Procedures, article 156, section I, applies only to those proceedings subject to federal jurisdiction, such as amparo proceedings or disputes between parties of different domicile when federalization applies in accordance with the law; its invocation as a primary rule in common court disputes over property in Quintana Roo would be technically incorrect. In both cases, territorial jurisdiction in real estate matters is non-waivable.

From the procedural perspective, the essential evidentiary elements comprise: the public deed that documents the purchase and sale, the analysis of the registration history in the Public Registry of Property and Commerce of Quintana Roo, expert reports on the physical and legal condition of the property, and, when simulation is alleged, circumstantial evidence constructed from the relationship between the parties, the agreed price against the commercial value, and the chain of title transfers.

The precautionary measure of preventive annotation of the complaint in the Public Registry, provided for in article 3043 of the CCF and in local registry provisions, is indispensable to preserve the enforceability of the judgment against third-party acquirers in good faith during the course of the proceeding. Failure to make this annotation exposes the claimant to lose practical effectiveness even before a favorable judgment.

Public Faith in the Registry and the Limits of Nullity Against Third-Party Acquirers

One of the most critical risks for the sophisticated investor who faces or brings an action for real estate nullity is the scenario in which a third party acquired the property in good faith and for valuable consideration, and registered their title in the Public Registry before the preventive annotation of the complaint was recorded. In this case, the principle of public faith in the registry, enshrined in article 3007 of the CCF, protects the third-party registrant who contracted relying on the information that the registry publishes, provided that their acquisition was for valuable consideration and they had no knowledge of the cause of invalidity at the time of contracting.

The distinction between absolute and relative nullity acquires here determining patrimonial consequences. With respect to relative nullity, the interpretive doctrine of the federal courts has consistently held that the third party in good faith who registered his or her acquisition prior to the preventive annotation remains protected by the public faith of the registry and cannot be deprived of his or her right through the nullity judgment; the effect of the latter is limited to the original parties to the defective act, and the claim of the affected party is converted into an action for damages and losses against the transferor. In contrast, in the case of absolute nullity, the majority doctrinal position and the interpretive line of the First Chamber of the SCJN point to the fact that the registral protection of the third party cannot prevail over the legal nonexistence of the originating title when it is null and void as a matter of law for contravening public policy, since no one can transfer more rights than he or she has; however, this conclusion is not unanimous in all circumstances, and its practical result depends on the concrete circumstances of each transmission chain.

The position described corresponds to a general interpretive criterion derived from the doctrine of the federal courts. For the litigant, the practical consequence is clear: the preventive annotation must be requested upon filing the claim, without exception, because once a third party registers his or her acquisition prior to the annotation, the discussion on the opposability of the nullity becomes uncertain, prolonged, and costly.

Restitutionary Consequences and the Problem of Improvements

The judgment granting nullity generates reciprocal restitutionary obligations. The seller returns the price plus legal interest; the buyer restores the real property. However, the settlement of improvements introduces complexity: necessary and useful improvements made in good faith are compensable in accordance with articles 806 and 807 of the CCF; recreational improvements are only recoverable if they can be separated without detriment to the real property. It should be noted that articles 806 and 807 of the CCF are located in the chapter on possession and usufruct, and their application to the context of restitution following the declaration of nullity operates through analogical interpretation, in the absence of a specific restitutionary rule for improvements in the nullity regime. This analogical application is the practice that is jurisprudentially accepted; consequently, the litigant must base this claim with explicit analogical argumentation.

The First Chamber of the SCJN has held, in its consolidated interpretive line on the effects of nullity, that the declaration of nullity has retroactive effects and obliges the parties to mutually restore themselves to the state in which they were prior to the annulled act, without the good faith of the buyer exempting him or her from the restitutionary obligation when the nullity derives from an objective cause of public policy. The reference corresponds to a general interpretive criterion of the Chamber attributable to its doctrinal line on articles 2239 et seq. of the CCF, without imputing to it the character of a specific registered thesis. In adhesion contracts used by real estate developers, the Collegiate Courts of the XXVII Circuit have recognized, in their interpretive practice, the propriety of the examination of fairness in clauses that exclude the responsibility of the transferor for hidden defects or undisclosed liens; this position is characterized equally as a general interpretive criterion of that circuit.

Practical Considerations for Investors

Prevention of the risk of nullity requires a comprehensive review of the title to property with sufficient retroactivity, analysis of land use restrictions under the municipal urban development plans in effect, verification of the status of agrarian regularization before the National Agrarian Registry when there are antecedents of ejidal property (a matter developed in the specific section of this article dedicated to the Agrarian Law), and review of authorizations for use and construction before the corresponding municipality.

When nullity is already inevitable, the litigation strategy must anticipate the accumulation of restitutionary actions, conventional or judicial recognition of improvements with the analogical foundation described, and the possible civil liability of the notary or the real estate agent involved.

Notarial Civil Liability: Foundation, Standard, and Accumulation with the Nullity Action

The civil liability of the notary public who intervened in a real estate sale subsequently declared void constitutes an autonomous avenue for compensation that is frequently undervalued in litigation strategy. The notary is not a mere formal custodian of documents: his legal function includes verifying the legal capacity of the parties, the freedom from encumbrances of the property, compliance with legal restrictions applicable to the transaction, and the legality of the subject matter of the contract. In Quintana Roo, the Notarial Law of the State of Quintana Roo establishes the specific obligations of the notary in the notarial function and the duty of advisory services to the parties; non-compliance with these obligations that causes damage to the parties or third parties generates professional civil liability in accordance with the general rules of articles 1910 et seq. of the CCF, applicable to the notary in his capacity as a legal professional.

The standard of care required of the notary is that of a specialized professional: it is not sufficient for him to reproduce the will of the parties, but rather he is obliged to warn of apparent legal defects in the title, refuse to exercise his office when the transaction violates rules of public order, and verify the registration history before formalizing the transfer. The omission of these due diligence measures in the presence of detectable irregularities, such as undisclosed registered encumbrances, evident ejidal restrictions, or absence of the required concession in federal zone, constitutes professional negligence capable of generating a judgment for damages.

From a procedural standpoint, the action for civil liability against the notary may be joinder with the principal action for nullity when both claims derive from the same facts, in accordance with the objective joinder of actions rules of the CPCQR. This joinder is strategically advantageous because it allows resolving in a single proceeding the invalidity of the act, the restitution of performances, and compensation for damages not covered by reciprocal restitution. The notary’s liability is direct and not subsidiary with respect to the nullity action: the success or failure of nullity does not necessarily condition the admissibility of the restitutory claim, which has its own basis in the established professional negligence. The real estate agent who participated in the transaction may be subject to civil liability under the same general rules when his active or omissive conduct contributed to the defect that motivates the invalidity.

Operational Conclusion

The nullity of real estate contracts is not an automatic or simple remedy. It requires precisely identifying the type of invalidity, preserving the registration position through timely precautionary measures, building a coherent probative strategy, and managing the restitutory consequences with equal rigor as the principal action. The distinction between absolute and relative nullity determines who may bring the action, within what timeframe, with what effects, and against whom. Incorrectly classifying the applicable regime is an error that is usually paid for with loss of the action, with judgments that do not produce the desired patrimonial effect, or with the inability to oppose nullity to a registered third party who consolidated his position while the litigant omitted the preventive annotation.

IBG Legal is a boutique firm specializing in civil and real estate corporate litigation, headquartered in Cancún with offices in Mexico City and Querétaro. Our practice in real estate nullity matters is developed before the civil courts of the state of Quintana Roo and the Collegial Courts of the XXVII Circuit, where we have intervened in complex litigation involving nullity, simulation, patrimonial restitution, and conflicts arising from title chains with ejidal history in the coastal zone of the Riviera Maya. We combine substantive litigation with preventive transactional advisory services, which allows us to identify and neutralize the risks of invalidity before closing the transaction. For specialized advice on this matter, please contact us.

Sources and References

Legislation

Federal Civil Code (CCF), articles 17, 1795 to 1838 (validity requirements, defects of consent and prescription of relative nullity), 2180 (simulation), 2239 et seq. (effects of nullity), 3007 and 3043 (registral public faith and preventive annotation), 806 and 807 (improvements, applicable by analogy to post-nullity restitution), and 1910 et seq. (extracontractual civil liability). Published in the DOF on May 26, 1928; latest amendment published in the DOF on June 7, 2021.
Civil Code of the State of Quintana Roo (CCQR), articles 1746 to 1805 (regime of invalidity of legal acts). Published in the Official Gazette of the State of Quintana Roo; latest amendment available as of the publication date of this article.
Code of Civil Procedures of the State of Quintana Roo (CPCQR), provisions on territorial jurisdiction in real estate matters and joinder of actions. Official Gazette of the State of Quintana Roo.
Federal Code of Civil Procedures, article 156, section I. Applicable exclusively to federal jurisdiction proceedings (amparo and related actions). DOF, latest amendment published on January 9, 2012.
General Law on National Assets, article 7. DOF, May 20, 2004; latest amendment published in the DOF on January 19, 2018.
Foreign Investment Law, article 11. DOF, December 27, 1993; latest amendment published in the DOF on June 15, 2023.
Agrarian Law, articles 80 to 84 (full ownership over ejidal plots and requirements for their disposal to third parties). DOF, February 26, 1992; latest amendment published in the DOF on June 25, 2018.
Notarial Law of the State of Quintana Roo. Official Gazette of the State of Quintana Roo; latest amendment available as of the publication date of this article.

Judicial Criteria

General interpretative criterion — First Chamber of the SCJN (retroactive effects of nullity and reciprocal restitution obligation): In its doctrinal line regarding articles 2239 et seq. of the CCF, the First Chamber has consistently held that the declaration of nullity obligates the parties to restore themselves to the state prior to the nullified act, and that the subjective good faith of the acquirer does not extinguish the restitution obligation when the cause of invalidity is objective and of public order. A registration number for an isolated thesis or specific jurisprudence in the Federal Judicial Gazette that concentrates this criterion with reproducible bibliographic data could not be located and verified; the characterization is doctrinal and should not be attributed the character of a concrete registered thesis.
General interpretative criterion — First Chamber of the SCJN (registral public faith and article 3007 CCF): The Chamber’s interpretative line distinguishes between the protection of the registered third party in good faith against causes of relative nullity and the limits of such protection when nullity is absolute due to contravention of public order. The position described corresponds to a general interpretative criterion of federal courts.
General interpretative criterion — Collegiate Courts of the XXVII Circuit (Quintana Roo) (abusive clauses in adhesion contracts of real estate developers): In their interpretative practice, these courts have recognized the propriety of examining equity regarding stipulations that exclude the responsibility of the transferor for hidden defects or undisclosed encumbrances to the acquirer. A registration number for the corresponding thesis in the Federal Judicial Gazette could not be located and verified for its formal citation; the characterization is doctrinal and corresponds to the general interpretative line of the circuit, without implying the existence of a specific registered thesis.

Doctrine

Bejarano Sánchez, Manuel. Civil Obligations. 6th ed. Oxford University Press México, 2010.
Rojina Villegas, Rafael. Mexican Civil Law, Volume V: Obligations. 10th ed. Porrúa, 2011.
Galindo Garfias, Ignacio. Civil Law: First Course. 27th ed. Porrúa, 2009.

Official Sources

Federal Official Gazette (DOF): www.dof.gob.mx
Federal Judicial Gazette: sjf2.scjn.gob.mx (source for verification of theses and jurisprudence cited in general terms in this article).
Official Gazette of the State of Quintana Roo: publications available through the portal of the Government of the State of Quintana Roo.
Public Registry of Property and Commerce of the State of Quintana Roo: registry inquiries and certifications available at the corresponding offices.
National Agrarian Registry (RAN): www.ran.gob.mx