Most listings are in the $10's per square foot per year. The McAllen region is experiencing a decline in rates. In the last 3 months, the median rate fell $15 per sqft per year. That's a 48% decrease in rent.
In the last 90 days, 33 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 33% of the listings in the McAllen 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 on the market, so finding a space for a small business might be tough.
Even though the median size is 10,350 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this market are approximately 1 floors. Most buildings in this area were built in 2002 and are Class B.