The typical asking rate per listing is in the $20's per square foot per year. The Maryland region is experiencing a decrease in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 9% decline in rent.
In the last 90 days, 1216 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the office spaces in the Maryland are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,490 sqft. Most properties in this market are around 2 floors. Most buildings in this area were built in 1986 and are Class B.