The binding legal principles established are: (1) A curatorship order must be interpreted according to its specific terms - where a curator ad litem is appointed for a specific matter, the curatorship does not extend generally to all of the person's affairs. (2) The appointment of a curator does not automatically deprive a person of legal capacity to contract; mental capacity remains a question of fact that may vary from time to time, and a person can validly contract during periods when they have de facto mental capacity. (3) In a rei vindicatio action, once the applicant proves ownership, possession by the respondent, and lack of consent, the onus shifts to the respondent to prove a right of retention through recognized defenses (acquisition by prescription, third party ownership, alienation/destruction, or superior contractual right to possess). (4) To successfully challenge a contract on grounds of mental incapacity, there must be credible evidence of lack of capacity at the specific time the contract was concluded, not merely evidence of incapacity at some earlier or later date.