G.R. No. 203076 -77 and G.R. No. 206765 & 207214, July 10, 2019
AZUCENA E. BAYANI, Petitioner, vs. EDUARDO, LEONORA, VIRGILIO, VILMA, CYNTHIA AND NANCY, ALL SURNAMED YU AND MR. ALFREDO T. PALLANAN, Respondents; HEIRS OF CONCEPCION NON ANDRES, Petitioners, vs. HEIRS OF MELENCIO YU AND TALINANAP MATUALAGA, et al., Respondents.

FACTS

The core dispute involves Lot No. 2 of a subdivided property in Makar, General Santos City. The Heirs of Melencio Yu and Talinanap Matualaga (Yu Heirs) were declared the rightful owners in a 1990 Supreme Court decision ( G.R. No. 76487 ), which nullified a prior sale for lack of requisite government approvals. This 1990 ruling became final. During execution, however, the sheriff found the lot occupied by various parties, including the Heirs of Concepcion Non Andres (Andres Heirs) and the Yard Urban Homeowners Association, Inc. (YUHAI), who refused to vacate.
The Yu Heirs moved for demolition. YUHAI filed a separate injunction case (Civil Case No. 4647), which was consolidated with the original recovery case (Civil Case No. 1291). The trial court eventually dismissed YUHAI’s injunction and ordered the demolition. The Andres Heirs and another occupant, Azucena Bayani, challenged these orders, arguing they were not parties to the original 1990 case and were thus deprived of due process. They contended the writ of execution and demolition order could not bind them.

ISSUE

Whether the writ of execution and demolition order issued in Civil Case No. 1291, stemming from the 1990 Supreme Court decision, can be enforced against the Andres Heirs and Azucena Bayani, who were not impleaded as parties in that original case.

RULING

No. The Supreme Court ruled that the enforcement was void for violating due process. The 1990 decision in G.R. No. 76487 was an action in personam—it was binding only on the parties thereto, namely the Yu Heirs and John Z. Sycip. The Court emphasized the fundamental rule that a judgment cannot bind persons who were not parties to the action or who did not have their day in court. The Andres Heirs and Bayani were strangers to that litigation; they were never summoned, did not voluntarily appear, and their rights to the property were not adjudicated therein.
Consequently, the trial court’s orders directing their eviction and the demolition of their improvements based solely on the 1990 decision constituted a grave abuse of discretion. The Yu Heirs’ proper recourse was to file a separate action against these occupants to establish their right to possess the property against them. The Court annulled the challenged orders insofar as they affected the Andres Heirs and Bayani. It also directed an investigation into the sheriff for implementing the writ against non-parties and required the presiding judge to explain why he heard the consolidated cases despite a potential conflict of interest from prior representation of some parties.