Compared to the rest of the Gold Coast market, the North Miami region has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 1 listings have been listed, which means spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 600% of the office spaces in the North Miami are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,210 sqft. Most buildings in this area are close to 3 stories. Most buildings in this area were built in 1970 and are Class B.