Most listings are in the $10's per square foot per year. The Sebring region is going through a a rise in rates. In the last 3 months, the median rate went up $18 per sqft per year.
In the last 90 days, 1 listings have been made available, which means listings 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,900 sqft. Most properties in this market are close to 1 floors. Most buildings in this area were built in 1978 and are Class A.