The binding legal principles established are: (1) A registered title holder has real rights superior to personal rights acquired by a third party from someone who lacked authority to transfer those rights; (2) Under a pay-service-build and own scheme, ownership does not pass until all conditions are fulfilled; (3) For summary judgment to be defeated, a respondent must raise a bona fide defence that is clear, complete, and discloses facts showing a plausible case that could succeed on the merits; (4) In defending against actio rei vindicatio, a respondent must prove their right of retention through one of the recognized defences: prescription, ownership, alienation/destruction of property, or superior contractual right; (5) Personal rights cannot defeat real rights in property law; (6) Where a municipality divests a purchaser of rights and resells property, a subsequent purchaser from the divested party acquires no valid rights.