This Agreement may be modified, amended, waived, or terminated only by an instrument in writing signed by the party against which enforcement of such modification, amendment, waiver, or termination is sought. No failure or delay in exercising any rights provided hereunder shall constitute a waiver of any default or Event of Default. Assignor, at its expense, will execute all documents and take all action that Assignee from time to time may reasonably request to preserve and protect the rights provided under this Agreement. The headings in this Agreement are for convenience of reference only and shall not expand, limit or otherwise affect the meanings of the provisions. This Agreement may be executed in several counterparts, each of which shall be an original, but all of which shall constitute one document.