No failure or delay by the Lessor in exercising any right, power or remedy under this Agreement shall operate as a waiver thereof, nor shall any single or partial exercise of the same preclude any further exercise thereof or the exercise of any other right, power or remedy. Without limiting the foregoing, no waiver by the Lessor of any breach of any provision hereof shall be deemed to be a waiver of any subsequent breach of that or any other provision hereof. If at any time any provision of this Agreement is or becomes illegal, invalid or unenforceable in any respect, the legality, validity and enforceability of the remaining provisions of this Agreement shall not be affected or impaired thereby.