extinguish up to amount of property unless w/ contrary stipulation;
A special form of payment because 1 element of payment is missing: IDENTITY
• Governed by law on sales
• Conditions for a valid dacion:
1) If creditor consents, for a sale presupposes the consent of both parties
2) If dacion will not prejudice the other creditors
3) If debtor is not judicially declared insolvent