On average, listings lease in the $10's per square foot per year. The Sumter 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, 2 listings have been listed, which means leases might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 150% of the office spaces in the Sumter County are subleases, so you might be able to find a shorter term or below market rent. 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 1,340 sqft. Most buildings in this region were built in 2006 and are Class A.