Buy and hold in Maryland?

[Paul Hormann]

I'm interested in expanding my portfolio of rental units in MD and am looking at places along the 95/295 corridor such as Laurel, Savage, Columbia, Jessup, and possibly Ellicott City.  My goal is to acquire as many 30 year fixed mortgages now as possible on condos and townhouses that have a good cash flow, decent set of tenants for ease of management, and low risk of going down in value (higher appreciation would be a bonus).  I can buy cash and refi, or finance up front if I can find a good deal.  I would love to invest in DC, but am really interested in increasing my cash flow at this point.  Anyone else looking at this area or can provide any tips/share notes?  I've got 7 units in Savage right now, but don't know too much of the surrounding areas.

Thanks!