Interview and ask questions - and ask what will the agents do for you, besides input the property in the Multiple Listing Service and hope that it sells? Properties need to be marketed differently today, and you need to find someone familiar with technology as well as with experience to handle the process. Most importantly in my opinion, is someone who will communicate effectively with you during the process. East Point is a very diverse market as it relates to price range as well, so having someone familiar with the area is a big help. Neighborhoods vary, for example Colonial Hills (just south of Ft. McPhereson) has a high number of recent foreclosures, and I have had some appraisal issues with the appraisal process when a property goes under contract. Also, you may need to do some light repairs and fix up since your property is a rental, to ready it for as quick a sale as possible.
Bottom line is talk to a few agents, and get comfortable with one that you can partner with to get the job done.