Most listings are in the $20's per square foot per year. The Acworth region is going through a a boost in rates. In the last 3 months, the median rate increased $21 per sqft per year.
Compared to the rest of the Metro Atlanta market, the Acworth submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 3 listings have been made available, which means leases most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,980 sqft. Most buildings in this area are around 2 stories. Most buildings in this market were built in 2005.