The typical asking rate per listing is in the $30's per square foot per year. The Morristown submarket is going through a a rise in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 3% rise in rent.
In the last 90 days, 5 listings have been posted online, which means leases most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 4,160 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this area are close to 4 floors. Most buildings in this market were built in 1979 and are Class A.