How to Analyze Small Mixed Use Properties?

[Anthony Del Russo]

I am currently house hacking a SF Condo and am just starting to analyze deals for the next one. I am looking into small multifamily (under 4 unit) properties and found that many of them within my price range have commercial space. I have no experience with valuing or comping commercial spaces or commercial leases and want to learn more so I can include this large subset of properties in my search.

Does anyone have a good rule of thumb or resource to point me towards where I could, with some accuracy, learn to value potential income on the commercial part of a mixed use property?

Further, if anyone can suggest any resources for learning about mixed use or commercial spaces and leases, that would be a great help!