Upgrading from Residential Multi-Family to Commercial Multi-Family

[Larswin Mendoza]

It's a long shot at this point, but I currently own a 4-unit bldg here in San Diego, and am working on a possible 1031 exchange into a 14-unit building also here in San Diego.

Aside from the obvious differences in scale and financing, are there any laws, pitfalls, difficulties, etc that arise from owning commercial that aren't present with residential multi-family, particularly as it pertains to the People's Republic of California?

I'm new here and don't have much time to peruse the forum, but if this has been brought up before, can someone point out a link? Thanks in advance.