Why should you work with a Realtor, rather than an app that will do all of the paperwork for you? Well, if you consider your home to be a commodity, the same as every other home in every other neighborhood, and human beings are not involved in the selling or buying, then an app should work just fine. But in the real world, that's never the case. So be sure to work with a Realtor who is more than just a facilitator. Here's the bottom line: Realtors who can only facilitate a normal transaction are replaceable cogs in a process. Counselors with education and knowledge who are experts in exception — unique problems, irregular negotiations and last-second emergencies — cannot be replaced by an algorithm or an app.