The most obvious reason to sell your home yourself is to avoid having to pay the real estate commission. They also hear from a friend of a friend that if you sell them your house, then they don't need to face succession when you're gone. When you sell a home, you first have to pay any remaining amount of your loan, the real estate agent you used to sell the house, and any fees or taxes you may have incurred.
Having short sales and especially foreclosures on your street reduces the value of your home. Even if they are not direct comparable, such as in the same square feet and the number of bedrooms and bathrooms, they are in your immediate neighborhood, so they can cause the entire area to depreciate in value.
How long does it take to buy a home? A lot depends on how much time you spend buying one. But once you have a contract, it takes an average of 50 days to close a home.