G.R. No. 196743 - Spouses Chua vs. Spouses Lo

Spouses Lolito and Myrna Chua (the spouses Chua) owned Lot No. 505, a coconut land in Sta. Cruz, Laguna, totaling 21,644 sq m, registered under Original Certificate of Title No. P-3264.
On January 15, 1976, with Lolito’s consent, Myrna sold a portion of 4,612 sq m of Lot No. 505 to sisters Delia N. Becina and Josefina N. Becina (the Becina sisters).
On August 5, 1977, Lolito, again with Myrna’s consent, sold an additional 400 sq m of Lot No. 505 to the same sisters.
Thus, Delia and Josefina collectively purchased a total of 5,012 sq m from the spouses Chua via these two sale transactions.

Lot No. 505-A (14,492 sq m) and
Lot No. 505-B (7,152 sq m), the latter registered under Lolito’s name (TCT No. 83840).

Lot No. 505-B-3 was subdivided into two: Lot No. 505-B-3-A (600 sq m) and Lot No. 505-B-3-B (1,478 sq m).
Despite the sales, spouses Chua objected to the lots allotted to Delia and Josefina—specifically to Lot Nos. 505-B-2 and 505-B-3—as these totaled 5,612 sq m, 600 sq m more than the 5,012 sq m sold.

Lot No. 505-B-2 (3,534 sq m) be conveyed to Josefina.
Lot No. 505-B-3 would remain in Lolito’s name and be subdivided to segregate the extra 600 sq m.

Lolito sold Lot No. 505-B-2 to Josefina on February 25, 1984 (consideration: P94,180.00), and TCT No. T-101045 was issued to Josefina.
Lot No. 505-B-3 was registered to Lolito (TCT No. T-101046).
Lot No. 505-B-3-A (600 sq m) was sold by Lolito to his brother Sergio, evidenced by TCT No. T-114915.
Despite this, Josefina and her husband Agustin forcibly occupied all of Lot No. 505-B-3, including the 600 sq m portion belonging to Sergio.

Delia died on January 23, 1987; her heirs are Victor Lo (spouse) and their children.
On September 12, 1999, Victor sold Lot No. 505-B-3 (2,078 sq m) and a non-existent Lot No. 505-B-4 (428 sq m) to Agustin Lo Realty Corporation.
Agustin Lo Realty Corporation occupied the entire Lot No. 505-B-3 and began construction.
The spouses Chua demanded that respondents vacate Lot No. 505-B-3-A (600 sq m) and remove structures, which was refused.
Respondents acknowledged the 1976 and 1977 deeds of sale but contended that Myrna sold 500 sq m to Josefina in 1975 and that the Chua spouses mortgaged portions of Lot No. 505-B and 505-A-3-B despite prior sales.
Respondents claimed the 1984 contract of sale to Josefina included 3,534 sq m:

The spouses Chua filed a complaint for quieting of title, annulment of sale, recovery of possession, and damages, seeking to recover Lot No. 505-B-3-A (600 sq m) and to annul the September 21, 1999 deed of sale executed by Victor in favor of Agustin Lo Realty Corporation.
The Regional Trial Court ruled in favor of the respondents, dismissed the complaint.
The Court of Appeals affirmed the dismissal.
Petitioners filed a Petition for Review on Certiorari with the Supreme Court.

Whether petitioners (spouses Chua and Sergio Chua) are entitled to recover Lot No. 505-B-3-A measuring 600 sq m as the excess area erroneously sold and occupied by respondents.