Full stop.

If they stop going the income stops.

Stop hanging out with your deadbeat buddies who spend all day drinking, talking sports, and otherwise wasting away.

I have a job with steady income but I want to stop working by the age of 27.

Quote from @Chris Olandese: Stop expecting her to respond.Post a notice on her door and take a picture of it for evidence.

Which I don’t really want to deal with anymore because we did have tenants in there, but our first tenants stopped paying, trashed the house, and we evicted them.

To continue with the 8-unit example, you again end up spending many multiples of these costs to build a comparable portfolio of single family properties.Another disadvantage of single family properties is that there is only one tenant per building and if they stop paying or if there is a vacancy, the entire cost of that property is on you and your wallet until you can fill that vacancy and get the rent coming in again.

I thought I'd stop and have a myself a brew. 

Quote from @Daljit Singh: Hi BP, I am currently house hacking a duplex in Union City, NJ, and unfortunately, the tenant stopped paying rent a few months ago. 

The 1% rule doesn't matter as much if you have a 5-10 year investing horizon because it does not take into account appreciation or other benefits of holding (tax benefits, etc.)The 1% rule stops a lot of folks from getting started.