Spain’s Mandatory MASC Reform

Jurisdictional Distortion and Barriers to Justice

Spain’s Organic Law 1/2025 imposes MASC (alternative dispute resolution) as a mandatory precondition to filing many civil claims, including family law disputes. In practice, access to the courts is no longer immediate—it is conditioned on prior negotiation.

A Constraint on Access to Justice

Failure to prove a prior negotiation attempt can render a claim inadmissible. This transforms judicial protection from a fundamental right into a conditional entitlement, subject to procedural filtering.

In family law, this requirement directly affects:

• Divorce proceedings

• Parental responsibility disputes

• Modification of measures

• The Jurisdictional Problem

One of the most problematic aspects of the reform is its distortion of jurisdictional logic.

Consider a cross-border family dispute where one party resides in Spain and the other in New York City. Jurisdiction may properly lie with Spanish courts under applicable rules. However, before accessing those courts, the Spain-based party is required to initiate or attempt a MASC process.

This generates multiple inconsistencies:

• Procedural burdens detached from jurisdiction: negotiation is imposed regardless of where the dispute should legally be decided

• Increased cost and complexity: particularly when parties are located in different legal systems

• Unclear legal framework: uncertainty as to which rules govern the negotiation phase in a transnational context

The result is a pre-litigation layer that interferes with jurisdictional coherence, especially in cross-border disputes.

Impact in Family Law

In high-conflict cases—especially those involving children—this additional requirement is particularly problematic:

• It can delay urgent judicial protection

• It may be used strategically to obstruct proceedings

• It forces interaction where cooperation is often unrealistic

Existing exceptions (such as gender-based violence) remain too narrow to resolve the broader structural issue.

Conclusion

The mandatory MASC system does not merely promote negotiation—it reconfigures access to justice.

By imposing a precondition that disrupts jurisdictional clarity and delays court access, the reform creates a systemic barrier, particularly in international family disputes.

Access to justice is no longer immediate—it is conditioned, delayed, and in some cases, effectively restricted.