When negotiating with the seller, find answers to the following if possible:

• Why they are selling?
• How long has the home been on the market?
• What is the seller’s timeframe for selling?
• Are there any defects in the home or any upcoming changes to the neighborhood?
• How much did the seller pay for the home in comparison to asking price?
• Look for any possible downward trends?

Establish a timeframe. 
There are potential advantages if your terms are more flexible than the seller’s.