The typical asking rate per listing is in the $20's per square foot per year. The Tallahassee region is going through a decrease in rates. In the last 3 months, the median rate decreased $4 per sqft per year. That's a 16% decrease in rent.
In the last 90 days, 77 listings have been made available, so you'll want to check back regularly for new listings. About 1% of the listings in the Tallahassee are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 2,000 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 1989 and are Class B.