Some will abuse it, others are really into saving the planet, so it's random. 

I'd rather profit a bit less and my property not be abused and destroyed than book every last night with whoever is willing to stay there at whatever rate I can get.

The latter is abused horribly.

Not sure how else to protect myself from this abuse allowing online letters never having personally met the patient.  

Unless you are in a profession that requires the reporting of suspected child abuse, you do not have to report.

The risk of abuse by tenants is far to high to ever allow any tenant those discretionary powers.

Drug Abuse Felony?? 

Mom/dad gets a place to live in their golden years, which is something you might have needed to pay for any-damn-ways except this way it isn't one of those abusive dictator nurse places, and X years from now your reward is that you have a new rental property that you only had to put 5% down on.

Otherwise there is just too much scope for abuse.

"NO sexual or violent crimes" and run a background check.I have properties in FL and AZ so some laws are different.