The approved contractors have to meet insurance guidelines (often not met by an average company), typically are certified by national and state agencies in home energy efficiency, and invest around $10k in energy testing equipment just to participate.

I believe my wife and I pass all the test under REPS and material participation.

All which can be determined by Air Quality testing.

You can purchase in a small spray bottle or a gallon and rent a difuser (which some HD rent) to mist for larger areas.    

First is from roof along 3rd floor ceiling and I could not isolate source on leak test.

Hi Haiden, are you an agent or do you still need to pass the test and qualify?  

Clearing, ordering surveys, soil tests.

I got a feeling that life as a Private-$ Investor may be a great place to start, and these properties lend a perfect means to testing that out, solving 2 issues in 1 action, because you can JV your way out of the operational side of things AND retain that long term financial upside. 

Turns out there were other posts in that thread which also tested positive for AI...

Burnet county near you seems to have put some lots online for auction, kind of as a test it seems.No one redeems in my experience so the 25-50% rule is a bit of a myth.