Most listings are in the $30's per square foot per year. The Lynn region is seeing a a boost in rates. In the last 3 months, the median rate rose $33 per sqft per year.
Compared to the rest of the Greater Boston market, the Lynn submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 8 listings have been made available, which means new listings most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,800 sqft. Most buildings in this area are close to 5 floors. Most buildings in this region were built in 1967 and are Class B.