Even in a down market, real estate experts say price and condition are the two most important factors in selling a home. So, the first step is to lower the price. Also, go through the house and see if there are cosmetic defects that you missed and can be repaired.
Home sellers should make sure that the home is getting the exposure it deserves through open houses, broker open houses, advertising, good signage and a listing on the local multiple listing service.
If the seller is using a real estate agent and the property isn't getting proper exposure find another agent.