Ejido Co-Ownership Agreement Mexico (Acuerdo de Copropiedad de Tierras Ejidales)

An Ejido Co-Ownership Agreement Mexico (Acuerdo de Copropiedad de Tierras Ejidales) is a written instrument that formalises a co-ownership arrangement (copropiedad) over ejidal land (tierras ejidales) — land held under the ejido regime established by the Mexican agrarian reform and governed by the Ley Agraria (LA) published in the Diario Oficial de la Federación on 26 February 1992. Under the Ley Agraria, ejidal land is classified into three categories: parcelas ejidales (individual parcels assigned to ejidatarios for exclusive use); tierras de uso común (common use lands shared by all ejidatarios for collective benefit); and tierras para el asentamiento humano (urban zone land for the ejido's residential area). The co-ownership agreement applies primarily to parcelas ejidales where multiple parties share rights in the same land unit.

Ley Agraria Articles 14 through 16 establish the governance structure of the ejido — the fundamental collective agrarian unit in Mexico. Article 14 defines the ejido as an entity with legal personality (personalidad jurídica) and patrimony (patrimonio propio), comprising a group of ejidatarios (members) who collectively hold, administer, and use the ejidal lands assigned to the ejido by the Secretaría de la Reforma Agraria (now Secretaría de Desarrollo Agrario, Territorial y Urbano — SEDATU). Article 15 establishes the ejido's governing organs: the Asamblea General de Ejidatarios (supreme decision-making body); the Comisariado Ejidal (executive organ); and the Consejo de Vigilancia (supervisory organ). Article 16 specifies the powers of the Asamblea General — including the authority to approve individual parcel assignments, transfers of ejidal rights, and land use agreements.

Co-ownership of ejidal parcels arises in several contexts under Mexican agrarian law: inheritance of ejidal rights under Ley Agraria Article 17–19, where an ejidatario dies leaving rights to multiple heirs (sucesores) who temporarily co-own the parcel until one successor is designated; contractual co-investment arrangements where two or more ejidatarios or external investors contribute resources to develop a specific ejidal parcel under an asociación or joint venture approved by the Asamblea; and consolidation arrangements where adjacent parcel owners agree to work their lands as a common unit. The Registro Agrario Nacional (RAN) — the federal registry for ejidal and communal land rights established under Ley Agraria Article 148 — records all parcel assignments, transfers, and co-ownership arrangements.

The Procuraduría Agraria (PA), established under Ley Agraria Articles 135–147, provides free legal advice and dispute resolution services to ejidatarios — including assistance with drafting and registering co-ownership agreements. The Tribunal Unitario Agrario (TUA) has exclusive jurisdiction over agrarian disputes including co-ownership conflicts under Ley Orgánica de los Tribunales Agrarios Article 18, applying the Ley Agraria, the Código Agrario provisions preserved by the transitional provisions, and civil law principles by analogy.

The ejido system in Mexico was modernised by the 1992 Ley Agraria — enacted as part of the reforms preceding Mexico's entry into NAFTA (now USMCA/T-MEC) — which ended the constitutional prohibition on ejidal land privatisation and introduced the dominio pleno mechanism. Prior to 1992, ejidal land could not be sold, mortgaged, or leased to non-ejidatarios under any circumstances. Today, SEDATU and the Registro Agrario Nacional (RAN) administer the ejido system across Mexico's 31 states and the Ciudad de Mexico, overseeing approximately 29,000 ejidos encompassing over 50% of Mexico's total land area and roughly 3.5 million registered ejidatarios.

An Ejido Co-Ownership Agreement Mexico is required whenever two or more ejidatarios, comuneros, or authorised parties wish to formally document their shared rights over ejidal land — whether arising from inheritance, investment, agricultural partnership, or government-approved development project.

The agreement is essential in agrarian succession contexts where an ejidatario has died without designating a single successor (sucesor de derechos ejidales) under Ley Agraria Article 17 — leaving multiple family members as temporary co-owners (coherederos de derechos ejidales) of the parcel until a formal succession proceeding before the Tribunal Unitario Agrario or Asamblea General designates the permanent holder. Without a co-ownership agreement, multiple heirs occupy and use the parcel without clear rights allocation.

The document is needed in agricultural investment partnerships where ejidatarios from the same or different ejidos wish to pool their parcels for large-scale commercial agriculture — fruits, vegetables, grains, or specialty crops for export under the Secretaría de Agricultura y Desarrollo Rural (SADER) development programs. A formal co-ownership agreement defines each ejidatario's contribution, profit share, and management responsibilities.

A co-ownership agreement is required when external investors (inversionistas externos) enter into an approved association with ejidatarios under Ley Agraria Article 45 — which permits ejidos to associate with third parties for the use of ejidal land in development projects approved by the Asamblea General with the required quorum. The agreement formalises the investor's rights, the ejidatarios' retained title, and the revenue sharing structure.

The document is also needed for agroindustrial projects (proyectos agroindustriales) supported by government financing from FIRA (Fideicomisos Instituidos en Relación con la Agricultura) or FINANCIERA NACIONAL, which require documented land tenure arrangements before disbursing agricultural development credits.

Under Ley Agraria arts. 14–16 and Reglamento Interior del Ejido, all significant arrangements affecting ejidal land use and rights should be approved by the Asamblea General and registered with the Registro Agrario Nacional — informal oral arrangements create significant legal uncertainty and expose co-owners to disputes before the Tribunal Unitario Agrario.

A co-ownership agreement is particularly important when ejidal parcels are selected for infrastructure development — federal highways (carreteras federales), energy projects (proyectos de energia electrica, gasoductos administered by the SENER), or special economic zones (zonas economicas especiales) — where SEDATU or SENER negotiate collective easements (servidumbres colectivas) or expropriation compensation with multiple co-owners. A written co-ownership agreement establishes each co-owner's proportional entitlement to government compensation and prevents unequal distribution of expropriation payments. The Tribunal Unitario Agrario (TUA) has exclusive jurisdiction to resolve payment disputes among co-owners in expropriation proceedings.

A valid Ejido Co-Ownership Agreement Mexico under Ley Agraria Articles 14–16 must contain the following essential elements and comply with ejido governance requirements:

Identification of Co-Owners: Full legal name, CURP (Clave Única de Registro de Población), and ejidatario or comunero registration number (número de registro en el RAN) for each co-owner. The agreement must confirm each party's status as a recognised ejidatario or authorised party with documented rights in the relevant ejido, as registered in the Registro Agrario Nacional (RAN).

Identification of Ejido and Land: Full name and official registration of the ejido (nombre del ejido y municipio); parcel identification (número de parcela, certificado parcelario, or RAN registration number); precise surface area (superficie en hectáreas) and geographic description; and any existing use rights (derechos de usufructo) or improvements (mejoras) on the parcel. Reference to the certificado de derechos agrarios (agrarian rights certificate) issued by the RAN.

Asamblea General Approval: Documentation or commitment to obtain Asamblea General approval for the co-ownership arrangement — under Ley Agraria Article 23, the Asamblea is the supreme governing body and must approve agreements that affect parcel assignments, use rights, or associations with external parties. The quorum requirements (50% of ejidatarios plus one) and voting requirements must be met.

Rights and Obligations of Each Co-Owner: Each co-owner's proportional share (porcentaje de copropiedad) in the parcel; individual rights to use specific portions or all of the land collectively; obligations for maintenance (mantenimiento), improvement (mejora), and agricultural development (desarrollo agrícola) of the parcel; and contribution of resources (capital, labour, machinery, inputs) to shared agricultural or commercial activities.

Use Restrictions Under Ley Agraria: Acknowledgment of fundamental restrictions on ejidal land under the Ley Agraria: prohibition on transfer of ejidal parcels to non-ejidatarios without first adopting dominio pleno (full private ownership) under Ley Agraria Articles 81–84; restriction on mortgages and encumbrances on ejidal parcels except under FIRA and FINANCIERA NACIONAL agricultural credit programs; prohibition on subdivision creating parcels below the minimum agricultural unit (unidad mínima de dotación) established by SADER for the relevant crop and region.

Profit Sharing and Agricultural Accounting: Mechanism for distributing profits (utilidades) from agricultural production or land use fees; allocation of production costs (costos de producción), government subsidy payments (apoyos gubernamentales from SADER/PROAGRO), and agricultural credit obligations among co-owners.

Dispute Resolution: Submission to the Procuraduría Agraria (PA) for conciliation proceedings before initiating litigation, and to the Tribunal Unitario Agrario (TUA) of the relevant agrarian judicial district for adjudication of unresolved disputes under Ley Orgánica de los Tribunales Agrarios.

Termination and Liquidation: Conditions for termination of the co-ownership arrangement — completion of the agreed term, mutual agreement, or a co-owner's decision to withdraw their participation — and procedure for dividing or winding up the shared agricultural enterprise, subject to Asamblea General approval.

Ejidal land agreements require compliance with the Ley Agraria and the specific rules of the relevant ejido's Reglamento Interior — consult the Procuraduria Agraria's free legal services and the Registro Agrario Nacional before executing arrangements affecting ejidal rights.

Forms-legal.com provides this Ejido Co-Ownership Agreement Mexico template as an informational reference for ejidatarios, agrarian lawyers, and investors working with ejidal land under the Ley Agraria framework. Given the specialised nature of Mexican agrarian law — which differs fundamentally from civil property law under the Codigo Civil Federal — every ejidal co-ownership arrangement should be reviewed with the Procuraduria Agraria (PA) before execution. Significant commercial arrangements, especially those involving external investors or infrastructure projects, require a Licenciado en Derecho specialising in derecho agrario familiar with the Tribunal Unitario Agrario procedures.