@Shaun Sullivan - I haven't heard of Country Side off 85. Fredericktowne Village + Old Farm are both good rental locations. There should still be a foreclosure or two coming out of both areas once in a while. If you're ok with a little less than 1% then that can be had in the Frederick market today. Possible 1% if you get an extra good deal on a foreclosure.
For maintenance/capex on a townhouse, it depends how old it is and what your initial rehab/update is like. There will be something you need to do upfront. That can be factored in your offer if the price does not already reflect those things.
I've been expanding slowly in Hagerstown. 2-Unit duplexes built in the late 80s in decent areas and good schools. Fairly easy to get over 1% purchase-rent. Exiting old landlords provide a discount as well to sell quick for instant equity. That has been working well for me out there and I rarely have to go out there after closing, small rehab, and renting one out.