Most listings are in the $10's per square foot per year. The Warren County region is going through a a boost in rates. In the last 3 months, the median rate rose $16 per sqft per year.
In the last 90 days, 40 listings have been posted online, which means new listings are probably going fast. You'll want to be prepared to make an offer immediately. About 55% of the listings in the Warren County 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.
Even though the median size is 4,660 sqft, there are still 0 leases below 2,000 sqft. Most properties in this market are around 1 floors. Most buildings in this area were built in 1997 and are Class B.