On average, listings lease in the $20's per square foot per year. The Cumberland County region is experiencing a decline in rates. In the last 3 months, the median rate decreased $1 per sqft per year. That's a 4% decline in rent.
In the last 90 days, 33 listings have been listed, which means leases most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 3% of the available space in the Cumberland County 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 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 1,400 sqft. Most properties in this region are close to 2 stories. Most buildings in this market were built in 1980 and are Class B.