By the time you see just a handfull, you will know and it will be self-evident which(if any) you want. 

The fact that any person engages in or performs or offers to engage in or perform any of the practices, acts, or operations constituting "real estate activity" as set forth in R.S. 37:1431 is prima facie evidence that such person is engaged in the illegal practice of real estate.D.

Others may not care, but I would (if the state found credible evidence that I was violating licensing laws and I was investigated and given a cease and desist or worse).

The evidence suggests, however, that homeownership decisions by younger households have much more to do with affordability than location and lifestyle preferences," study authors said.The Harvard study found homeownership rates for millennials were 5 percent higher in metro areas where median home prices were 20 percent below the national median.

The capacity to conduct the analysis and make the Hard Call to walk away is evidence that you can make objective investment decisions.I hope I have not overwhelmed you with information, but the steps outlined above are Critical to figuring out whether any further investment is warranted and the likely payoff.Best of luck with this!

Or does any evidence of shifting at all usually disqualify?

Not to mention the reward a person can get for providing evidence of tax evasion.I personally would never pay rent in cash for my own protection.

Install cameras and give any evidence to the police.

To the OP, that email is just evidence that your screening methods work.

There will probably be a search warrant executed and the house will be tossed in any case, along with any evidence (eg, drugs or drug making equipment) collected.