Hang on..Just found this link...Some good legal info for sure..
Many of a real estate buyer pay in installment basis, so what happens if you default because of some reason or maybe you don’t have any money to pay anymore, perhaps you’re having trouble making ends meet because you or a family member lost a job. If you are having trouble making your payment. The best advice you’ll ever get is the law the provides solution to your problem, this is the Republic Act No. 6552 or the Realty Installment Buyer Act...
http://propertyinthephilippines.com/...ent-buyer-act/