Union Bank of the Philippines vs. Santibañez

A partition of estate properties and the heirs' assumption of the decedent's indebtedness are invalid if executed without probate court approval while testate proceedings are pending. Money claims against a decedent must be filed in the probate court; failure to do so bars the claim forever.

Efraim M. Santibañez obtained loans from First Countryside Credit Corporation (FCCC) in 1980, executing promissory notes and a continuing guaranty agreement with his son, Edmund. Efraim died in February 1981, leaving a holographic will, prompting testate proceedings in Iloilo City. In July 1981, heirs Edmund and Florence executed a Joint Agreement dividing the tractors purchased with the loan proceeds and assuming the corresponding debts, without probate court approval. FCCC assigned its assets to Union Savings and Mortgage Bank. Union Bank subsequently filed a collection suit against the heirs based on the loan documents and the joint agreement.

• The Loans: On May 31, 1980, Efraim M. Santibañez secured a ₱128,000.00 loan from FCCC to purchase a Ford tractor, executing a promissory note alongside his son Edmund. On December 13, 1980, Efraim obtained another loan of ₱123,156.00 for a second tractor and accessories; Efraim and Edmund signed a second promissory note and a Continuing Guaranty Agreement.
• Death and Probate: Efraim died in February 1981, leaving a holographic will containing a clause bequeathing "all other properties, real or personal" to his children. Testate proceedings (Special Proceedings No. 2706) commenced in the RTC of Iloilo City in March 1981, and Edmund was appointed special administrator.
• The Joint Agreement: In July 1981, heirs Edmund and Florence Santibañez Ariola executed a Joint Agreement dividing the three tractors between themselves—two for Edmund, one for Florence—and agreeing to assume the FCCC indebtedness corresponding to the tractor each received. The agreement was not submitted for approval to the probate court.
• Assignment of Assets: On August 20, 1981, FCCC assigned its assets and liabilities to Union Savings and Mortgage Bank via a Deed of Assignment with Assumption of Liabilities.
• The Collection Suit: After demand letters went unheeded, Union Bank of the Philippines filed a complaint for sum of money against Edmund and Florence in the RTC of Makati City. Edmund could not be served as he was in the United States, so the case proceeded solely against Florence. Florence asserted she was not a party to the loan documents and that the Joint Agreement was void without probate court approval.

• Validity of Partition: Petitioner argued that the Joint Agreement did not require probate court approval because the heirs signed in their personal capacities, and the tractors were not specifically mentioned in the holographic will.
• Estoppel and Waiver: Petitioner maintained that Florence was estopped from denying liability under the Joint Agreement having signed it unconditionally, and that her active participation in the civil action constituted a waiver of the right to require the claim to be litigated in probate proceedings.
• Solidary Liability: Petitioner averred that the heirs bound themselves jointly and severally with the decedent under the promissory notes and Continuing Guaranty Agreement, making a probate court filing unnecessary.
• Unjust Enrichment: Petitioner argued that allowing the heirs to escape liability while retaining the tractors would result in unjust enrichment.

• Probate Court Jurisdiction: Respondent countered that the money claim originated from the decedent's obligation and should have been filed in the probate court, especially since petitioner was aware of the pending testate proceedings when the Joint Agreement was executed.
• Invalidity of Agreement: Respondent argued that the Joint Agreement was void without probate court approval, as it could prejudice the estate, other heirs, and third parties, and the probate court had yet to determine the identity of all heirs.
• Lack of Waiver or Estoppel: Respondent maintained that no waiver occurred, as she explicitly stated in her answer that the claim should be filed in the probate court, precluding estoppel.
• Lack of Personal Liability: Respondent asserted she did not sign the Continuing Guaranty Agreement or the promissory notes, and thus did not bind herself to her late father's obligations.

• Validity of Partition: Whether the partition of estate properties in the Joint Agreement executed by the heirs is valid without probate court approval during pending testate proceedings.
• Assumption of Debt: Whether the heirs' assumption of the decedent's indebtedness in the Joint Agreement is valid and binding.
• Liability of Heirs: Whether the petitioner can hold the heirs liable on the obligation of the deceased in an ordinary civil action outside of probate proceedings.

• Validity of Partition: The partition was invalidated for lack of probate court approval. In testate succession, no valid partition among heirs may occur until the will is probated. The holographic will's "all other properties" clause encompassed the subject tractors. Because testate proceedings were pending, the probate court had acquired jurisdiction over the estate properties; disposing of them without the court's approval divests it of jurisdiction. Furthermore, the partition was premature and prejudicial to potential heirs and creditors, as the probate court had not yet determined the identity of the decedent's heirs.
• Assumption of Debt: The assumption of debt was rendered ineffective because it was conditioned upon the validity of the partition and the heirs' receipt of the specific chattels. Because the partition was void, the heirs effectively did not receive the tractors, and the condition for the assumption of liability did not occur.
• Liability of Heirs: The heirs cannot be held liable in an ordinary civil action. Money claims against a decedent arising from contract must be filed in the probate court pursuant to Section 5, Rule 86 of the Rules of Court; failure to do so bars the claim forever. Florence did not sign the promissory notes or the Continuing Guaranty Agreement, and thus incurred no personal liability. Finally, petitioner failed to prove it was the successor-in-interest of Union Savings and Mortgage Bank—the assignee of FCCC—as the Deed of Assignment did not name Union Bank, and no other evidence established the chain of succession. Petitioner's lack of personality to file the complaint warranted the dismissal.

• Probate of Will before Partition — In testate succession, there can be no valid partition among the heirs until after the will has been probated. The law enjoins the probate of a will to ensure the testator's right to dispose of property is not rendered nugatory. This applies to properties embraced in the will, including those covered by generic "all other properties" clauses.
• Mandatory Filing of Money Claims — All claims for money against a decedent arising from contract, whether due, not due, or contingent, must be filed within the time limited in the notice in the probate court; otherwise, they are barred forever. This mandatory requirement protects the estate by informing the executor or administrator of claims, enabling examination and determination of proper claims, and ensuring the speedy settlement of the decedent's affairs.

• "In testate succession, there can be no valid partition among the heirs until after the will has been probated. The law enjoins the probate of a will and the public requires it, because unless a will is probated and notice thereof given to the whole world, the right of a person to dispose of his property by will may be rendered nugatory."
• "The filing of a money claim against the decedent’s estate in the probate court is mandatory."
• "To dispose of them in any way without the probate court’s approval is tantamount to divesting it with jurisdiction which the Court cannot allow."

• Vda. de Kilayko v. Tengco, 207 SCRA 600 (1992) — Followed. Established the rule that in testate succession, there can be no valid partition among the heirs until after the will has been probated.
• Py Eng Chong v. Herrera, 70 SCRA 130 (1976) — Followed. Held that the filing of money claims against a decedent's estate in the probate court is mandatory to protect the estate and ensure the speedy settlement of the decedent's affairs.
• Ralla v. Untalan, 172 SCRA 858 (1989) — Followed. Clarified that the rule requiring probate before partition presupposes that the properties to be partitioned are the same properties embraced in the will.
• Sandoval v. Santiago, 83 Phil 784 (1949) — Followed. Stated that disposing of estate properties without probate court approval divests the probate court of its jurisdiction.
• Reyes v. Ysip, 97 Phil 11 (1955) — Followed. Recognized that it is within the jurisdiction of the probate court to determine the identity of the heirs of the decedent.

• Article 774, Civil Code — Cited regarding the transmission of the decedent's obligations to the heirs; applied by petitioner but overridden by the mandatory probate claims procedure.
• Article 1082, Civil Code — Cited for the definition of partition: every act intended to put an end to indivision among co-heirs and legatees or devisees is deemed to be a partition, although it should purport to be a sale, exchange, compromise, or any other transaction.
• Section 5, Rule 86, Rules of Court — Cited as the mandatory mechanism for filing money claims against a decedent's estate; applied to bar the petitioner's claim for failure to file in the probate proceedings.

Puno (Chairman), Austria-Martinez, Tinga, and Chico-Nazario.