Plenty of properties look like good deals at first glance. The rent covers the mortgage, the neighborhood seems fine, and the listing photos are clean. But buy-and-hold investing isn't about the first glance — it's about whether the property still makes sense five, ten, and twenty years from now. The whole point of holding instead of flipping is that the returns compound quietly over a long stretch of time, and a property that looks merely "okay" today can turn into a genuine wealth-builder if the underlying numbers are right.

Tenant screening has never been more data-driven. Credit scores, income ratios, background checks, and automated approval systems are now standard tools for landlords of all sizes. These systems promise efficiency, objectivity, and reduced risk. On the surface, they appear to remove uncertainty from the rental decision.