I had a few rentals and mostly at the harder end of the lower economical demographic if you know what I mean.
Most were amazing people and we looked after them, some were not so amazing if any longer term resident's complained about the problem people we would evict them.
Never ever had a problem doing this as long as you crossed the T's and dotted the I's followed the requirements it was straight forward and also having a good property manager and managing them plus any costs were just part of the business.
You were lucky.
I've had a couple of horrors. One was a long-term tenant, family with 4 children, got on well with them. Suddenly they stopped paying the rent, said they had financial issues. We tried to help, didn't want to throw a family out on the street. And then we found out that they were building a house, which is great but don't transfer your burdens onto other people with their own issues. I was paying a mortgage on the rental and had my own bills to pay. Suddenly communications were ignored, and we couldn't access the property for inspections. We went down the legal rabbit hole and found that the process of eviction is not easy.
When those tenants finally did a midnight run, they left the place like bomb went off, bags full of dope leaf and stem, even stole some of the lead light.
Our specific rental insurance didn't cover half the damage, they kept refereeing to 'wear & tear'.
In hindsight, my mistake was not taking into account that the husband kept changing jobs, they were all as a cook, and he was home a lot.
We took our losses, sold all our shares, worked many late nights and weekends with the help of friends and paid trades, and got the place ready for rent again.
When looking for new tenants we favoured people with professions and no children.
10 years later we bulldozed that place, built two homes, sold one and rented the other to two a same couple for 8 years, two divorced men both with good employment. The place is immaculate.
The other horror story was a property we purchased from our neighbour when she had to move to full time care. A nice young couple, our agent had done all the checks, and they did not have a blemish, both had good jobs.
First sign of a problem was in the second year, one rule we had was no dogs because of the polished floorboards, one night we heard a dog barking. We couldn't evict them, one reason was the market was saturated with cheap rental properties, it was a renter's market.
Next issue was when the police asked if they could access our back yard because they had to keep an eye on the male occupant next door that was having a psychotic episode and was threatening to kill himself. A medical negotiator managed to talk him out and he was taken to hospital.
Legally we could not evict him after that. We had to wait for the lease to end, while he paid rent at inconsistent dates, his partner left.
The only shining light when he did leave was that there was minimal damage, if you didn't take into account the dogs claw marks on the Baltic pine floorboards.
We ended up selling that property to my son, right when the rental market finally turned in favour of the landlord.