The typical asking rate per listing is in the $20's per square foot per year. The Baltimore region is going through a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 2% increase in rent.
Compared to the rest of the Greater Baltimore market, the Baltimore submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 116 listings have been posted online, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,080 sqft. Most properties in this region are close to 3 stories. Most buildings in this market were built in 1963 and are Class A.