The waiver by either Party of a breach of any provision of this Agreement shall not be construed as a waiver of any subsequent breach. The failure of a Party to insist upon strict adherence to any provision of this Agreement on one or more occasions shall not be considered a waiver or deprive that Party of the right thereafter to insist upon strict adherence to that provision or any other provision of this Agreement. Any waiver must be in writing and signed by the Executive and Montreign.