No party, including all Co-Tenants and principal owners of the Co-Tenants, shall be permitted to assign any of its rights or obligations under this Agreement, without the prior written consent of BR CDP. Any assignment or attempted assignment of any of the rights or obligations under this Agreement without complying with this Paragraph E shall be void ab initio. Notwithstanding the foregoing, to the extent permitted under any Loan, interparty transfers of Co-Tenancy interests in the Property between Duke and Commander shall be permitted provided the ownership composition of Duke and Commander does not change from the ownership composition which existed as of the date of this Agreement. The Co-Tenants agree among themselves to cause Trustee and CB to use commercially reasonable efforts when negotiating Loan Documents to provide for such interparty transfers under the Loan.