The typical asking rate per listing is in the $20's per square foot per year. The Montgomery County region is going through a a boost in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 8% rise in rent.
In the last 90 days, 13 listings have been made available, which means new listings might be going fast. You'll want to be prepared to make an offer immediately. 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 1,700 sqft. Most buildings in this area are close to 1 stories. Most buildings in this area were built in 1998 and are Class B.