Most listings are in the $10's per square foot per year. The Liberty submarket is seeing a decline in rates. In the last 3 months, the median rate decreased $73 per sqft per year. That's a 79% decline in rent.
In the last 90 days, 47 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the listings in the Liberty 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.
The standard measurement for office space in this area is around 1,480 sqft. Most properties in this region are around 1 stories. Most buildings in this area were built in 1983 and are Class B.