Promissory Notes Enforceability and the Absence of Vitiated Consent

The Supreme Court recently clarified when a promissory note remains enforceable even if the person who signed it claims to have been pressured into doing so. In Mangahas v. Brobio (G.R. No. 183852, October 20, 2010), the Court ruled that being "forced into a situation" does not automatically amount to vitiated consent, and that a promissory note supported by any consideration—even an inadequate one—will generally be upheld. The decision offers practical guidance for anyone who signs or relies on written promises to pay.

The Facts of the Case

After Pacifico Brobio died intestate in 2002, his heirs executed a Deed of Extrajudicial Settlement. The petitioner, one of the deceased's illegitimate children, waived her share in three parcels of land in favor of the respondent, her stepmother, for P150,000.00. The petitioner later claimed the respondent promised an additional amount for her share.

In May 2003, the respondent needed the petitioner to countersign a copy of the Deed for Bureau of Internal Revenue (BIR) requirements. The petitioner refused unless she received a written assurance of additional payment. After negotiation, the amount was reduced from P1 million to P600,000.00, and the respondent executed a promissory note dated May 31, 2003, promising to pay that amount by June 15, 2003.

When the respondent failed to pay, the petitioner filed a complaint for specific performance. The trial court ruled in her favor, but the Court of Appeals reversed, finding the note void for lack of consideration and executed under intimidation. The Supreme Court reinstated the trial court's decision.

The Issue: Was Consent Vitiated?

The central question was whether the respondent's consent to the promissory note was vitiated by intimidation or undue influence.

The Court held that it was not. Under Article 1335 of the Civil Code, intimidation requires a "reasonable and well-grounded fear of an imminent and grave evil upon his person or property." The respondent's fear of BIR penalties for delayed tax filing did not qualify as such an evil.

The Court also rejected the claim of undue influence. Under Article 1337 of the Civil Code, undue influence exists when a person takes improper advantage of his power over the will of another, depriving the latter of a reasonable freedom of choice. The Court explained that for undue influence to be present, the influence exerted must have so overpowered or subjugated the mind of a contracting party as to destroy his free agency, making him express the will of another rather than his own. Here, the respondent still had a choice: she could have refused to sign and sought judicial remedies to obtain the petitioner's signature. Instead, she chose to execute the note—and even negotiated to reduce the amount from P1 million to P600,000.00, which showed she was exercising free will, not being deprived of it. The Court noted that being forced into a situation does not amount to vitiated consent where it is not shown that the party is deprived of free will and choice.

The Issue: Was There Consideration?

The Court likewise rejected the argument that the promissory note lacked consideration. Under Article 1354 of the Civil Code, a contract is presumed to be supported by sufficient consideration. The burden to prove otherwise rests on the party alleging lack of consideration, and mere assertion is not enough.

Here, the respondent failed to overcome this presumption. The Court found that the promissory note was issued for a cause or consideration—at the very least, the petitioner's signature on the Deed. Even if the consideration was inadequate, the Court noted under Article 1355 that inadequacy does not invalidate a contract unless fraud, mistake, or undue influence is proven.

The Remedy of Partition Was Incorrect

The Court also corrected the appellate court's suggestion that the petitioner should have filed an action for partition. Partition presupposes co-ownership. Since the heirs had already executed a deed of extrajudicial settlement and waived their shares, the properties were no longer owned in common. There was nothing left to partition.

Practical Takeaways

• Pressure alone does not invalidate a contract. Being in a difficult situation—such as facing a deadline or needing someone's signature—does not amount to intimidation or undue influence unless free will is destroyed.
• Negotiation is evidence of voluntary consent. If a party bargains over terms, such as reducing an amount, courts will likely view the resulting agreement as freely made.
• Consideration is presumed. A party claiming a contract lacks consideration bears the burden of proving it by preponderance of evidence, not just by assertion.
• Inadequate consideration is generally not a defense. Unless fraud, mistake, or undue influence is shown, courts will not invalidate a contract merely because the consideration seems insufficient.
• Choose the correct legal remedy. Filing the wrong action, such as partition when ownership has already merged, can delay or defeat a valid claim.

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