@Jamie Mathieu
Best way would be to talk to a few local Property Managers and see what their takes are. You can probably find some right here on BP or at least can get recommendations from someone here.
You can also go online and check out some statistics. Redfin might be a good free source - they service Baltimore. When you're on a property's page, there is a section called Neighborhood Info (near the middle of the page) with a little box to the right with Demographics link. Click on it and another page will show you the housing inventory (owned v rented v vacant, turnover, crime, etc.). Granted, this is for the zip code ONLY, so gives a general overview. But a good start before you dig in by community and blocks.
Another place can be city data. You can get a lot of info for the zip, then drill down to the community, including population growth, etc.. Some data can be a bit outdated, but again, a good place to start.
Best of luck!