The typical asking rate per listing is in the $20's per square foot per year. The Rhode Island region is going through a an increase in rates. In the last 3 months, the median rate went up $29 per sqft per year.
In the last 90 days, 228 listings have been listed, so you'll want to check back regularly for new listings. About 50% of the available leases in the Rhode Island are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 3,000 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this area were built in 1945 and are Class B.