If any provision or provisions of this Agreement shall be held to be invalid, unlawful or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired. The failure of a party hereto to insist upon strict adherence to any term of this Agreement on any occasion or the failure of a party hereto to exercise or any delay in exercising any right or remedy under this Agreement shall not constitute a waiver of any such term, right or remedy or a waiver of any other rights or remedies, and no single or partial exercise of any right or remedy under this Agreement shall prevent any further exercise of the right or remedy or the exercise of any other right or remedy. Any waiver must be in writing signed by the waiving party.