In the event the Indemnified Parties have a reasonable basis to believe that an environmental hazard exists on any Individual Property, other than conditions expressly disclosed in the Environmental Reports, that does not (a) endanger any tenants or other occupants of such Individual Property or their guests or the general public, or (b) materially and adversely affect the value of such Individual Property or the Collateral, upon reasonable written notice from the Indemnitee, describing in reasonable detail the basis for such belief, Indemnitors shall, at Indemnitors’ sole cost and expense (or cause Mortgage Borrower at Mortgage Borrower’s cost and expense to), promptly cause an engineer or consultant reasonably satisfactory to the Indemnified Parties to conduct an environmental assessment or audit of such hazard (the scope of which shall be determined in the reasonable discretion of the Indemnified Parties) and take any samples of soil, groundwater or other water, air or building materials or any other invasive testing reasonably determined by Indemnitee to be required to assess such condition and promptly deliver to Indemnitee the results of any such assessment, audit, sampling or other testing; provided , however , if such results are not delivered to Indemnitee within a reasonable period or if the Indemnified Parties have reason to believe that an environmental hazard exists on such Individual Property that endangers any tenant or other occupant of such Individual Property or their guests or the general public or may materially and adversely affect the value of such Individual Property or the Collateral, upon reasonable notice to Indemnitors, the Indemnified Parties and any other Person designated by the Indemnified Parties, including, but not limited to, any receiver, any representative of any Governmental Authority and/or any environmental consultant, shall have the right, but not the obligation, to enter upon such Individual Property at all reasonable times (subject to the rights of tenants) to assess any and all aspects of the environmental condition of such Individual Property and its use, including, but not limited to, conducting any environmental assessment or audit (the scope of which shall be determined in the sole, but good faith discretion of the Indemnified Parties) and taking samples of soil, groundwater or other water, air or building materials and reasonably conducting other invasive testing, reasonably determined by the Indemnified Parties to be required to assess the condition. Indemnitors shall cooperate with and cause the applicable Mortgage Borrower to provide, upon advance notice to each of them, the Indemnified Parties and any such Person designated by the Indemnified Parties with access to each Individual Property.