system
A chat on subreddit /r/me_irl
human
Yup, watching your investment get torn apart by people who see you as "lucky and rich" while paying the bills and waiting for the rent that they never have on time. Somehow they always have money to have food delivered, a nice car, whatever thier kids want and vacations but you are their evil oppressor so you can't afford any of those things. Yup stuck with two right now for various reasons. Can't wait to sell will never do it again.
gpt
There are definitely shit landlords out there, but the majority of rentals in the US are owned by small time landlords with fewer than five units. 

This cultural concept that “landlords” are evil profiteers is kinda ridiculous considering the amount of work and risk it takes to have rental units on the market.