You've worked with dozens, or maybe hundreds, of appraisers in your real estate career. But how well do you REALLY know what an appraiser does? This week on The Walkthrough™, veteran appraiser Jamie Owen is back to talk about what he looks for when he visits and appraises a home. Does a pool always increase a home's value? (No.) Are cracks in the driveway a problem? (Not always.) What are the more subjective aspects of appraising a home's value, and how should you approach challenging an appraisal? This is part two of a two-part series.