Section 527: Circumstances where a contract needs not be performed

In any of the following circumstances, it is not necessary to perform any act under, or perform, a contract:

(a) If either party to a contract waives the other party from fulfilling the obligation under the contract,

(b) If a voidable contract is voided by the party entitled to do so,

(c) If the contract cannot be performed due to the reason of its breach by the other party,

(d) If it is not necessary to perform the act under the contract by operation of any provision of this Part,

(e) If a contract is unenforceable according to Section 531.