2012 Pennsylvania Consolidated Statutes
Title 13 - COMMERCIAL CODE
Chapter 2A2 - Formation and Construction of Lease Contract
Section 2A208 - Modification, rescission and waiver

     § 2A208.  Modification, rescission and waiver.
        (a)  Consideration unnecessary for modification.--An
     agreement modifying a lease contract needs no consideration to
     be binding.
        (b)  Writing excluding modification or rescission.--A signed
     lease agreement that excludes modification or rescission except
     by a signed writing may not be otherwise modified or rescinded,
     but, except as between merchants, such a requirement on a form
     supplied by a merchant must be separately signed by the other
     party.
        (c)  Ineffective modification or rescission as waiver.--
     Although an attempt at modification or rescission does not
     satisfy the requirements of subsection (b), it may operate as a
     waiver.
        (d)  Retraction of waiver.--A party who has made a waiver
     affecting an executory portion of a lease contract may retract
     the waiver by reasonable notification received by the other
     party that strict performance will be required of any term
     waived, unless the retraction would be unjust in view of a
     material change of position in reliance on the waiver.

        Cross References.  Section 2A208 is referred to in section
     2A207 of this title.