Most listings are in the $20's per square foot per year. The Freehold submarket is going through a an increase in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 4% increase in rent.
In the last 90 days, 5 listings have been posted online, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,000 sqft. Most properties in this area are around 2 floors. Most buildings in this market were built in 1987 and are Class A.