Most listings are in the $20's per square foot per year. The Washington County submarket is going through a an increase in rates. In the last 3 months, the median rate increased $6 per sqft per year. That's a 35% increase in rent.
In the last 90 days, 42 listings have been made available, so you'll want to check back regularly for new listings. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this area are approximately 2 stories. Most buildings in this region were built in 1998 and are Class B.