you want to be a Landlord, involved in Rental Business.
You have to expect, nothing you could stop this from happen.

They are human
for 5000 years human want to stop crime, crime still happen today.

Want being landlord, expect only supernice pay master. better go invest money game.
Rental Business = Most stupid business for average people.
is a business that pray for :

1. good paymaster
2. good person
3. hygiene
4. Rent non stop
5. Prop price up
6. when want to sell, sell on the spot at good price.
Please go genting you have higher chance. and save more time