What does a real estate appraiser mainly do?

If you are an appraiser of an appraisal company, what you do is, for example, the old houses in a certain district are to be demolished, but neither you, the bank nor the developer can evaluate the original value of the houses, so you can only ask the appraisal company for help. As an appraiser, you should go to this community to make an appropriate evaluation of the house through the surrounding facilities, housing quality (including floors and lots) and many other factors, and then give the information to customers, banks and lots.