Agency vs Assignment: Who Is the Real Party in Interest in Contract Disputes

When a contract dispute arises, one of the first questions a court asks is: who has the legal right to sue? This is the doctrine of "real party in interest." In Angeles v. Philippine National Railways (G.R. No. 150128, August 31, 2006), the Supreme Court clarified how to distinguish between an agent and an assignee — a distinction that determines who may bring a lawsuit.

The Facts of the Case

In 1980, the Philippine National Railways (PNR) accepted Gaudencio Romualdez's offer to buy scrap rails in Pampanga for P96,600.00. After paying, Romualdez wrote to PNR authorizing Lizette Wijanco to be his "lawful representative" in withdrawing the rails. The letter stated that giving her the award documents "will indicate my waiver of rights, interests and participation in favor of Lizette."

Lizette later requested and received permission to withdraw rails from a different location in Tarlac. When PNR suspended the withdrawal due to alleged discrepancies and pilferages, Lizette and her husband (the petitioner) demanded a refund. PNR refused, claiming Lizette had already withdrawn rails worth more than the amount paid.

The spouses filed suit for specific performance and damages. Both the trial court and the Court of Appeals dismissed the case, ruling that Lizette was merely an agent of Romualdez, not an assignee, and therefore had no legal standing to sue.

The Issue: Agent or Assignee?

The central question was whether Romualdez's May 26, 1980 letter designated Lizette as a mere agent or as an assignee of his rights to the scrap rails.

The distinction matters because of the real party-in-interest rule. Under Philippine procedure, every action must be prosecuted in the name of the real party in interest — the party who stands to be benefited or injured by the judgment.

The Court's Ruling

The Supreme Court denied the petition and affirmed the lower courts' rulings. Lizette was an agent, not an assignee.

The Court reasoned that where agency exists, the third party's liability is to the principal, not the agent. Generally, an agent cannot sue or be sued on the contract. However, if an agent is also constituted as an assignee, the agent may sue in his or her own behalf.

Reading the letter as a whole, the Court found that Romualdez's use of the word "authorized" indicated his intent to keep his interest in the transaction. The phrase "For this reason" — which preceded the waiver language — showed that the documents were given to Lizette merely to enable her to withdraw the rails as his representative.

Interpreting Contracts: Key Principles

The Court applied two important rules of contract interpretation from the Civil Code:

Article 1374 provides that the various stipulations of a contract shall be read together, attributing to doubtful stipulations the sense that results from all of them taken jointly.

Article 1371 provides that to judge the intention of the contracting parties, their contemporaneous and subsequent acts shall be principally considered.

Applying these rules, the Court noted that the spouses themselves later referred to Lizette as an "authorized representative" in their own letters. The withdrawal receipt Lizette signed also indicated she was acting in a representative capacity. A person who professes to act as an agent is estopped from denying that agency.

The Form of a Power of Attorney

The petitioner argued that the letter was not in the form of a special power of attorney. The Court rejected this. In the absence of statute, no particular form is required for a valid power of attorney. It may be in any form clearly showing the agent's authority. The written authorization itself is the power of attorney, and its purpose is to evidence the agent's authority to third parties.

A power of attorney must be strictly construed. Lizette was authorized only to withdraw the rails — not to sue in her own name.

Practical Takeaways

• Identify the real party in interest before filing suit. A person who merely acts as an agent or representative generally cannot sue on the contract. Only the principal — or an assignee with a valid assignment — has legal standing.
• Read contracts and letters as a whole. Courts interpret documents in their entirety, not in isolated paragraphs. Language like "waiver of rights" must be read in context.
• Use precise language. If an assignment of rights is intended, say so explicitly. Using words like "authorize" or "representative" signals agency, not assignment.
• Be consistent in subsequent documents. Your own later letters and receipts can be used against you to show the true nature of the relationship.
• No special form is needed for a power of attorney. A clear written authorization suffices, but its scope will be strictly construed.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.