On average, listings lease in the $10's per square foot per year. The Lehigh Acres region is seeing a a boost in rates. In the last 3 months, the median rate went up $16 per sqft per year.
In the last 90 days, 6 listings have come on the market, which means new availabilities are probably going fast. You'll want to be prepared to make an offer immediately. About 150% of the available leases in the Lehigh Acres are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 1,360 sqft. Most properties in this region are around 1 stories. Most buildings in this area were built in 2007 and are Class B.