The typical asking rate per listing is in the $10's per square foot per year. The Medina submarket is going through a decline in rates. In the last 3 months, the median rate decreased $3 per sqft per year. That's a 17% decrease in rent.
In the last 90 days, 1 listings have been listed, which means leases 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,370 sqft. Most properties in this area are approximately 2 floors. Most buildings in this region were built in 1917 and are Class B.