a. changing object or principal conditions
b. substituting person of debtor
c. subrogating 3rd person in right of creditor
REQUISITES:
a. valid obligation
b. intent to extinguish old obligation – expressed or implied: completely/substantially incompatible old and new obligation on every point
c. capacity & consent of parties to the new obligation
d. valid new obligation
EFFECT OF NOVATION:
a. extinguishment of principal carries accessory, except:
- stipulation to contrary
- stipulation pour autri unless beneficiary consents
- modificatory novation only; obliged to w/c is less onerous
- old obligation is void
b. old obligation subsists if:
- new obligation is void or voidable but annulled already ( except: intention of parties )
c. if old obligation has condition
- if Resolutory & it occurred –old obligation already extinguished; no new obligation since nothing to novate
- if suspensive & it never occurred –as if no obligation; also nothing to novate
d. if old obligation has condition, must be compatible with the new obligation; if new is w/o condition – deemed attached to new
e. if new obligation has condition
- if resolutory: valid
- if suspensive & did not materialize: old obligation is enforced