On average, listings lease in the $20's per square foot per year. The Montgomery County region is going through a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% rise in rent.
In the last 90 days, 21 listings have been made available, which means new listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 124% of the listings in the Montgomery 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 3,890 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are approximately 1 floors. Most buildings in this area were built in 1992 and are Class A.