Depending on the area, real estate tends to appreciate – depending on local demand levels. This can vary substantially within even a short distance, but if you choose property carefully, it can appreciate quite substantially over a long period of time. Also, if you are good at fixing up real estate, doing so may trigger a substantial increase in property value. You can try to searh free offers of property for sale in your region.
An active investor can search for the best deals, control costs, judge which applicants will become tenants, and decide when to sell. By participating in every aspect of the investment process, you can impose more control over how much you earn. In short, your own actions determine how much you make.