The failure of a party hereto at any time or times to require performance of any provision hereof shall in no manner affect its right at a later time to enforce the same. No waiver by a party of any breach of any provision of this Agreement shall be effective unless set forth in an instrument in writing signed by the party or parties to be bound thereby and specifically referencing the breach of the provision to be waived, and no waiver in any one or more instances shall be deemed to be a further or continuing waiver of any such breach in other instances or a waiver of any other breach of any other provision.