Most listings are in the $10's per square foot per year. The Monroe region is going through a an increase in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 14% rise in rent.
In the last 90 days, 5 listings have been posted online, which means office spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 80% of the listings in the Monroe are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,720 sqft. Most properties in this region are around 1 floors. Most buildings in this market were built in 0 and are Class B.