On average, listings lease in the $10's per square foot per year. The Henry County region is going through a a rise in rates. In the last 3 months, the median rate increased $15 per sqft per year.
In the last 90 days, 0 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. About NaN% of the available leases in the Henry County are subleases, so you will probably have to focus your search on direct office leases. 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 1,160 sqft. Most buildings in this market were built in 1900 and are Class A.