The typical asking rate per listing is in the $20's per square foot per year. The Kalamazoo submarket is going through a a boost in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 15% rise in rent.
In the last 90 days, 28 listings have been listed, which means listings 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 1,400 sqft. Most buildings in this area are close to 1 floors. Most buildings in this market were built in 1959 and are Class Class B.