Location
Location also applies to the people who market real estate. Unless you live in or are planning to relocate to a very small town, it is questionable whether or not a given agent is really familiar with your neighborhood, the schools that your kids will attend, the crime rates there, and many other considerations. In general, while most agents in the larger cities have access to a large volume of real estate information over a wide area, it is next to impossible for an agent to know everything of importance about every neighborhood and property in the city. There is just too much to know and not enough time.