G.R. No. 163767 - Republic vs. Vda. de Joson

The case arose from a suit for partition and damages involving two parcels of land designated as Lot No. 730 (17,688 square meters) and Lot No. 879 (10,278 square meters) of the Carmona cadastre.
Ownership of the properties was derived from Remigia Baylon (Lot No. 730) and Januario Loyola (Lot No. 879), a married couple whose heirs later became involved in the dispute.

Remigia Baylon and Januario Loyola had seven children: Conrado, Jose, Benjamin, Candida, Soledad, Cristeta, and Encarnacion—all bearing the Loyola surname.
The administration of the estates was initially entrusted to Encarnacion Loyola-Bautista, during which the heirs received their respective share in the fruits (income) of the subject properties.

Upon the death of Encarnacion on September 15, 1969, her daughter, Amelia Bautista-Hebron (petitioner), assumed the administration of the properties.
Subsequently, petitioner began withholding the shares due to Candida and the heirs of Conrado.
A formal demand for partition was made on November 4, 1990, at which point Candida was the only surviving child of Remigia and Januario, while the other heirs (represented by their descendants) continued to assert their rights.

The Regional Trial Court (RTC) of Cavite, Branch 20, rendered a decision on June 22, 1999, ordering an equal partition of the two parcels among the seven sets of plaintiffs (heirs).
The Court of Appeals (CA) modified the RTC decision to include petitioner’s participation in the partition after noting that her inadvertent exclusion was due to a misstatement (“seven (7) sets of plaintiffs” instead of “seven (7) sets of heirs”).
The CA affirmed that petitioner failed to prove, by preponderance of the evidence, any waiver or assignment of shares by Candida and the heirs of Conrado.

Petitioner contended that Canonical evidence, including parol evidence, substantiated an executed agreement of waiver of shares due to financial support rendered by Encarnacion.
Respondents maintained that no such waiver or sale of shares was proven and argued that the issue was purely factual, with findings of fact being final under the rules of admissible evidence and deference to lower court determinations.

Whether the appellate court erred in affirming the trial court’s ruling that the burden of proof for the alleged waiver or sale of shares rested with petitioner, who failed to substantiate her claim with a preponderance of evidence.
Whether the appellate court erred in affirming the ruling that a spouse or guardian present cannot relinquish the shares in a parcel of land if such action would deprive minor children of their hereditary rights.
Whether the appellate court erred by failing to give credence to the parol evidence presented by petitioner regarding the purported executed agreement of waiver or assignment of shares from Candida and the heirs of Conrado.
Whether the appellate court committed a reversible error by not considering that the alleged waiver by Candida and the heirs of Conrado is barred by the doctrine of estoppel.