Lets just say the odor is a dead rat.

I can't find any dead rat contractors in the phone book. How do you repair a dead rat?

Do we call out a Haz-Mat team at a 10K cost or do we call an exterminator or Willie the handyman?

I personally don't want the responsibility of making that call or telling the client what to do. I would tell them, Yes I can smell something but I don't know what it is.

Leave it at that.

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Rick Hurst_Home Works Inspection Co_Rockwall TX
In the words of Mike Tyson.... "Everyone has a plan until they get hit inda mouf"