I live in Makati and Angeles city, I moved to Pattaya because Angeles is dead, and Makati is a traffic hell hole and not really an expat town! It's cheaper overall to live in Philippines!
I am not suggesting anyone do anything! If she dies first then he might inherit the land depends on if there are others claims. As a Farang he must dispose of the property within 12 months! A Farang cannot own or control land or try to assert control of land in any way, read the constitution!