On average, listings lease in the $20's per square foot per year. The Franklin Lakes submarket is experiencing a a rise in rates. In the last 3 months, the median rate rose $26 per sqft per year.
In the last 90 days, 0 listings have been made available, which means new listings are probably going fast. You'll want to be prepared to make an offer immediately. About NaN% of the available leases in the Franklin Lakes are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 1,200 sqft. Most buildings in this market were built in 1983 and are Class A.