ALDABA V. CA
27 SCRA 263
Belen was a prominent and rich woman. When she died, she left as heirs her husband and daughter. Before her death, she allowed Dr. Aldaba and his daughter to live in one of her houses. Now that she is dead, the surviving heirs wanted the doctor and his daughter out of the house. They refused to do so, claiming a valid donation in their favor, evidenced supposedly of a letter by Belen allowing them to stay further in the house.
Intent to donate is not enough to effect a valid donation.