To enhance the value of the property, she decided to sell a 4,094-square meter portion thereof, more particularly Lot No. 3-C and a portion of Lot No. 3-D to her co-respondent herein, Jose V. Lagon (Lagon, for short), a successful businessman in Sultan Kudarat who owned a construction firm and other business enterprises: the Lagon Enterprises and the Rural Bank of Isulan.