Not sure how to assess commercial unit need

[Sarah Moore]

We're considering 4 commercial properties in our area. These include multiple office and retail spaces. I'm good with the underwriting, and know that the numbers would work. The only hesitation I have is that I am not 100% certain about the office space rental market. I'm still new to this arena and don't want to make a costly mistake if I can avoid it. 

What advice do you have for determining if the demand is there for prospective commercial (office space) tenants?