The typical asking rate per listing is in the $20's per square foot per year. The Maryland region is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 2% decline in rent.
In the last 90 days, 1597 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the listings in the Maryland are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,950 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this market are close to 2 floors. Most buildings in this region were built in 1986 and are Class A.