The typical asking rate per listing is in the $20's per square foot per year. The Florida submarket is experiencing a a rise in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 8% rise in rent.
In the last 90 days, 4365 listings have come on the market, so you'll want to check back regularly for new listings. About 3% of the office spaces in the Florida 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,350 sqft. Most buildings in this market are approximately 1 floors. Most buildings in this area were built in 1984 and are Class B.