Those Who Are Lazy and Don't Like Fixing Things
If you are a lazy person who doesn't like to drive out to a property late at night to fix items, or call around to schedule people to fix items, or your weekends are reserved solely for "me" time and not to work on your properties, you should skip the idea of investing in real estate. When things break or there are issues with a property, it's never a one-hour fix. As a potential landlord, you'd better make sure you are willing to spend some of your free time working on your property because it never fails that the most urgent calls occur on Christmas Eve, Labor Day, and of course, Super Bowl Sunday. So if you are not someone who will tend to your properties, don't be in the landlord business.