Compared to the rest of the Metro Atlanta market, the Kennesaw region has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 15 listings have been listed, which means new availabilities most likley are 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 1,880 sqft. Most properties in this market are around 2 stories. Most buildings in this area were built in 2006 and are Class B.