This really hurts on privacy ...

Names and location omitted for privacy reasons.

To have any meaningful impact on behavior it would have to be an ongoing thing since most tests detect metabolites for at most 96 hrs. 2) while you will weed out some bad apples you will also drive away many many good applicants who will view the cost of this massive invasion of privacy as far to high compared to the value they'd get from living in your rental.

Having a family of our own, we are wanting more and more privacy after each house hack. 

Choosing the best building sites, septic location / size, well location and the proximity of the cabins to reduce cost (trenching, piping, conduit) but still giving enough privacy.

Cecilia,I lean toward privacy myself, which is why I understand your desire to create an environment where you can have rental income along with privacy, all in a single family house.

The problem is, my communications are P2P just using a virtual number for privacy reasons.

I use Thunderbird on desktop, which creates a file on my PC that has my emails in it.As far as privacy, it's simplest to assume that any free-to-you "cloud" service is snooping your data, selling it to anyone with money, and giving it to the feds for free. 

I am also aware that using land trusts can get around this but I am not convinced it is worth the hassle since the privacy benefits offered by a land trust are mostly lost in this particular situation.  

There’s no tax advantage, no privacy advantage, no liability advantage.