Most listings are in the $10's per square foot per year. The Fargo submarket is experiencing a an increase in rates. In the last 3 months, the median rate increased $18 per sqft per year.
In the last 90 days, 11 listings have been posted online, which means new availabilities are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 700% of the listings in the Fargo 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 posted, so finding a space for a small business might be tough.
Even though the median size is 2,910 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this area are around 2 stories. Most buildings in this market were built in 1994 and are Class B.