The typical asking rate per listing is in the $10's per square foot per year. The Mississippi submarket is going through a an increase in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 12% increase in rent.
In the last 90 days, 136 listings have been made available, so you'll want to check back regularly for new listings. About 96% of the available space in the Mississippi 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,940 sqft. Most properties in this region are close to 1 floors. Most buildings in this area were built in 0 and are Class B.