BONUS: I'd rather investigate a concern for a property owner, than any manufacturer.
After all, they are the one with the complaint.
I get to talk and explain everything to them, as I do my investigation. Unlike the A-holeish attitude you must have when out for a manufacturer and the 20 questions hit from the property owner, looking over your shoulder.
I mean you can be as polite as you can, but all they hear is, I cannot tell you s*it, maam.
I do private inspections as well. Who gets info directly just depends who is paying the bill. On a private examination the retailer or installer is welcome but I wont say anything to them while there and the consumer gets the report. It's not a-holeish at all. Thats just the way it is. You should know that by now.
A professional attitude is the way it should be. Ya don't want to be in the middle of a fight at the consumers house. Thats another reason you don't say anything until the report is out. Oh, sure you can say this is wrong or that is not correctly installed, but still, get it on paper before jabbering your mouth off.
On the mans claims I just tell them they will receive the report in 7 to 10 business days. And not in any a-holeish attitude. Everyone is always very nice to me.