On average, listings lease in the $20's per square foot per year. The Montgomery County submarket is going through a a boost in rates. In the last 3 months, the median rate went up $3 per sqft per year. That's a 10% increase in rent.
In the last 90 days, 177 listings have been posted online, so you'll want to check back regularly for new listings. About 3% of the available leases in the Montgomery County are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,160 sqft. Most properties in this region are around 2 floors. Most buildings in this region were built in 2000 and are Class B.