Mortgagor agrees to keep the Mortgaged Property insured against loss or damage by fire and other casualty with extended coverage and against any other risks or hazards which in the opinion of Mortgagee should be insured against, and in any case against all risks which persons engaged in the same business as is carried on at the Premises customarily insure against, with the minimum amount of said insurance to be no less $3,600,000.