The typical asking rate per listing is in the $10's per square foot per year. The Buffalo submarket is seeing a decrease in rates. In the last 3 months, the median rate fell $6 per sqft per year. That's a 27% decrease in rent.
In the last 90 days, 4 listings have come on the market, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,280 sqft. Most properties in this region are close to 1 stories. Most buildings in this area were built in 1980 and are Class B.