On average, listings lease in the $20's per square foot per year. The Milwaukee County submarket is going through a a boost in rates. In the last 3 months, the median rate increased $2 per sqft per year. That's a 9% increase in rent.
Compared to the rest of the Milwaukee County market, the Milwaukee County submarket has lower rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 214 listings have come on the market, so you'll want to check back regularly for new listings. About 2% of the available leases in the Milwaukee 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 available, so finding a space for a small business might be tough.
Even though the median size is 2,640 sqft, there are still 0 leases below 2,000 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this area were built in 1973 and are Class B.