The typical asking rate per listing is in the $20's per square foot per year. The Fort Washington region is going through a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% rise in rent.
In the last 90 days, 8 listings have been made available, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 75% of the listings in the Fort Washington 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 posted, so finding a space for a small business might be tough.
Even though the median size is 12,500 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this region were built in 1972 and are Class A.