It depends on what you are seeing and your skill at interpreting it. Thermography depends very much on the skill of the Thermographer. What's the training background. What is the knowledge of building sciences and thermodynamics? Are you seeing an anomaly or reflection, is the delta T enough for good readings?

Given that conditions are right and you ARE seeing possible moisture, the standard is to VERIFY the cameras findings by other means. The camera only allows you to quickly pare down the areas of concern for further investigation. Now is the time to defer to moisture intrusion specialists, mold specialists and remediation people. Anything more and you are opening yourself up to huge liability.
I don't know about you but I'm insured as an "Industrial Photographer". I take pictures only. I don't interpret the findings to the client. I don't put myself forth as a "Moisture Intrusion Specialist". Careful wording of your findings as an "anomaly requiring further investigation by a qualified specialist" is pretty safe. This is where your skill comes in. If you report false data, you are not going to get much more work and may even kill the validity of Infrared in the eyes of the Realtors and clients.

__________________
"Political Correctness is a doctrine, fostered by a delusional, liberal minority and rabidly promoted by an mainstream media,which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."