Diversity is always a good idea when it comes to investment, states Dean Graziosi. But most people have a narrow definition of what it means to diversify, because the natural tendency is to buy property nearby. Holding down the street may, for example, help to avoid long distance relationships with tenants. But investors who are limited to a geographical area may, however, lose the ripe opportunities elsewhere. Focusing solely on one city can be rewarding and convenient, but extends to other locations...