Real estate investing can be a great investment option that can yield lucrative short-term and long-term goals. Understanding these fundamental principles can mean the difference between succeeding and failing in this venture. Real estate investment has changed over time, but the underlying principles remain helpful to anyone entering the real estate game regardless of their longevity or season in the business. The 6 core principles are essential to understanding real estate investing. They are: Building relationships, understanding essential numbers, setting goals, and being prepared/staying ready.