What is the difference between list price, sales price and appraised value?

The list price is a seller's advertised price, a figure that usually is only a rough estimate of what the seller wants to get. Sellers can price high, low or close to what they hope to get. To judge whether the list price is a fair one, be sure to consult comparable sales prices in the area.
The sales price is the amount of money you as a buyer would pay for a property.
The appraisal value is a certified appraiser's estimate of the worth of a property, and is based on comparable sales, the condition of the property and numerous other factors.