Most listings are in the $20's per square foot per year. The Greater Baltimore submarket is going through a a boost in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 7% increase in rent.
Compared to the rest of the Greater Baltimore market, the Greater Baltimore region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 591 listings have been made available, so you'll want to check back regularly for new listings. About 4% of the available leases in the Greater Baltimore are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,500 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this market are close to 2 floors. Most buildings in this market were built in 1983 and are Class B.