Tenant shall not pledge, assign or grant a security interest in the Imposition Reserve Fund, or permit any lien or encumbrance to attach thereto or any levy to be made thereon by a party claiming through Tenant, except those naming Landlord as the secured party. Should Landlord elect to hold the Imposition Reserve Fund in an interest bearing account, all interest earned shall be added to the Imposition Reserve Fund and Tenant shall pay all taxes due in connection therewith.