Most listings are in the $10's per square foot per year. The Pontiac region is going through a a boost in rates. In the last 3 months, the median rate increased $18 per sqft per year.
Compared to the rest of the Metro Detroit market, the Pontiac region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 52 listings have come on the market, so you'll want to check back regularly for new listings. About 4% of the available leases in the Pontiac are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 6,890 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this area are close to 1 floors. Most buildings in this market were built in 1956 and are Class B.