The other thing to keep in mind is the rate of the sellers loan. The current rates are so incredible including FHA rates which only requires 3.5% down. If the sellers rate is significantly higher than you might want to consider doing your own loan for the property. You will also want to have a title search performed to ensure you are not inheriting liens... and you will want to make sure what type of loan you are assuming to ensure that your payments are not going to soon increase.
Best of Luck! Douglasville has a lot of foreclosures so choose your new home wisely.
The short version is, most often NO. Assumable requires you to qualify, but that rarely includes another down payment. (the first one being the current home owner)