you have received a very good answers from the real estate professionals, but I just want to add that famous saying "quality over quantity" can be applied here as well. I've known few rookies who were exceptionally successful in their first year due to their hard work, commitment and dedication to get the job done.
Real estate is a "people's business", so it could be important to find out how well you and a Realtor connect, how good is communication between you and if you see things with the same eyes.
Few things to pay attention to while choosing a Realtor are: their local expertise, sales skills, extensive marketing plan and if a real estate is their full-time career.
And if the record of agent's sold properties is important to you - I'm sure he/she will provide it if asked. I usually bring it to my first meeting/interview with the Seller.
Best of luck to you in getting your home sold!
Refer to county tax records
Lynn911 Dallas Realtor & Consultant, Loan Officer, Credit Repair Advisor
The Michael Group - Dallas Business Journal Top Ranked Realtors
I highly recommend reading bios and looking at agent listing inventories, then interviewing a few to find one who is both comfortable to work with and successful.
I closed 10.8 Milion in home sales for 2010, and that made me # 3 in total production in the Hendersonville MLS, Board of Realtors. I pride myself in showing potential sellers what the market stats are, and helping them price their home approprately. I provide excellent negotiating skills to help my seller get the most in this economy. Check out my web-site for more info on me.
Sometimes an agent's web site posts what properties they've sold recently (mine does). The best solution though would be to ask the agent. Many agents would be happy to tell you this information particularly if they've been successful in the market you are interested in.
Do keep in mind that you should consider other factors when selecting an agent such as: their availability, communication skills, market knowledge, personality, negotiating skills, and of course their moral code of ethics.
I hope this is helpful.
Prudential Connecticut Realty
As those below said, who sold the most means little. Our top salesperson in our market works at listing bank owned foreclosed homes and he does almost nothing else. He doesn't deal with sellers like you and I, but deals with banks and lenders, is this the agent you want to list your house? I doubt it. Go for an experienced agent. Ask how long they have been doing real estate. Experience comes slowly in this business and you want someone who knows the business and is doing it full time.