The typical asking rate per listing is in the $20's per square foot per year. The St. Mary's County submarket is going through a decline in rates. In the last 3 months, the median rate decreased $10 per sqft per year. That's a 30% decrease in rent.
In the last 90 days, 6 listings have been listed, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 17% of the office spaces in the St. Mary's County are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 4,000 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this region are approximately 1 floors. Most buildings in this region were built in 2000 and are Class A.