Distinguishing between A-Class, B-Class, C-Class properties?

[Corazon B.]

Are you able to tell which ones are the A class, B class, and C class properties based on how much it is being sold for and what types of public schools are available in the area? What are other ways are you guys able to distinguish between the properties? How are you able to tell what is the average salary of the people who are living in a neighborhood?