I am the property manager of a multi-unit commercial plaza in Massachusetts and not a fire professional. I am currently having a dispute with a tenant. Upon completion of a NFPA 25 inspection many deficiencies were found within one unit which is a restaurant. These include mixing standard response and quick response heads in the same compartment, sprinkler heads that are 4 feet apart when the minimum is 6 feet, a closet and 3 walk in coolers missing sprinkler coverage, sprinkler heads that don’t extend far enough below the ceiling, painted and corroded sprinkler heads and finally missing escutcheons. My tenant has had their own inspection done which only revealed 8 corroded sprinkler heads. Although I am sure that corroded heads are a violation, I’m not sure why the other deficiencies were missed from my tenant's inspection and what really is required by our municipality. I am hesitant to get the fire marshal involved. I, of course, want the premises to be safe but I also don’t want to place a heavy financial burden upon my tenant if these are not required to be fixed. I would really appreciate another professional opinion. Thanks in advance for your help.