\" \" The home appraiser's job is to determine the current value of a house or other property. Jonathan Storey/Getty ImagesOf all the people you'll interact with when buying or selling a house, the appraiser is the one you'll probably get to know the least. But he or she may play one of the most important roles in the sale or purchase of your home. A property appraisal is different from a property inspection. AdvertisementAdvertisementHere are 10 important things to know about a home appraisal, starting with why mortgage lenders require home appraisals in the first place.