And @AndryY I see what you are saying.
While there is nothing in this post that indicates whether or not the OP is investing by your standards, so not sure why folks are jumping on OP's investing style, the fact is that many new investors are one missed rent payment away from disaster. This is not the way to run a business and it's not how I teach investing.
Not casting judgement on anyone who got started that way (um, because I did, lol).
I've just lived and learned enough to realize that doesn't work for everyone. It can work, mathematically, long term but the stress and risk is too much for me, personally. I lost too much in the last economic downturn. So I teach my clients not to invest (in the market, real estate, or ventures) with money they can't afford to lose and I also recommend they maintain a healthy savings to cover things like vacancies, sewer main replace, etc.
At the same time business IS business. So this tenant has cancer. Next tenant will have something else. And how do you know that people are telling the truth? I once had an applicant who found out I was a minister. She told me it was my Christian duty to let her live free in my house if she had hard times and couldn't pay. I told her by not paying she is stealing, and I'm glad she expressed this before we signed a lease because there was no need for us to go further. In my business, I do as I recommended above. I have a list of orgs that can help, and I generally give one month to leave peacefully if they have exhausted their efforts to get support from friends/family/charity. This is how I personally balance my desire to treat someone as I would like to be treated and also run a viable business.