When a house doesn't sell as quickly as expected, it's easy (for the owner anyway) to lay the blame on a soft real estate market, or a lousy selling season. After all, neither of those things are the seller’s faults, nor under the seller's control. The fact is, though, that 90% of the time when a house doesn't sell quickly, it's due to problems that are within the control of the home's owner. And that's good news. It means that they're fixable - and once they're fixed, the house should sell qui.