No waiver of any right or remedy is effective against LANDLORD unless made in writing and signed by LANDLORD. Without limitation, (i) LANDLORD’S acceptance of any rent with knowledge of any default or Event of Default is not, by itself, a waiver of such default or Event of Default; and (ii) no attempted surrender of the Premises, by delivery of a key or otherwise, waives, limits, or otherwise impairs any right or remedy of LANDLORD unless LANDLORD so agrees in writing.