are you looking fro statistics or for an agent who works in Federal Hill? I have sold and listed a number of homes in this area (condos, singles and multi families. If you would like more info please contact Lorraine at : firstname.lastname@example.org
A good place to look would be the local newspaper's real estate section. You can cross-check the big advertisers with searches on google, yahoo, and MSN. When you find an agent and/or company that shows up in both searches, that's probably your answer. The local Realtor association may be able to help you with that as well.