3. Not Responding to All Offers

What if you get an offer that's simply too low? Don't reject it outright. See if you can negotiate. First of all, you can't blame someone for testing the market -- after all, in today's market, many buyers are confident that they have the upper hand. Secondly, by entering into negotiations with one party, you'll gain leverage with other potential buyers, says Corbett. Most importantly, it allows you to tell brokers that your property is in play and sends a message that if someone is interested, then he better present a competitive bid quickly.

Just don't get cocky. During this process, it's crucial for sellers to set a realistic bottom-line price they're willing to take, even if it's several thousand dollars below asking, says Corbett.

Watch our video for more advice on negotiating.