13 Pa.C.S. § 9624: Waiver.

(a) Waiver of disposition notification.--A debtor or secondary obligor may waive the right to notification of disposition of collateral under section 9611 (relating to notification before disposition of collateral) only by an agreement to that effect entered into and signed after default.

(b) Waiver of mandatory disposition.--A debtor may waive the right to require disposition of collateral under section 9620(e) (relating to mandatory disposition of consumer goods) only by an agreement to that effect entered into and signed after default.

(c) Waiver of redemption right.--Except in a consumer-goods transaction, a debtor or secondary obligor may waive the right to redeem collateral under section 9623 (relating to right to redeem collateral) only by an agreement to that effect entered into and signed after default.