MUCH thanks to everybody for their great responses. I do have some family in the area that have no RE experience, but might be able to help me show the unit to prospective tenants. Perhaps the idea of finding a deal that works with the 12% (thanks @James Wise for the suggestion to assume 12%) built in seems so unlikely here in LA, but maybe in Michigan it's realistic! It seems to me that the common issues in Michigan might be different than the common issues in California, especially with the several feet of snow and -20 degree temps they've been having (@Scott McMahan , stay safe!).
I'm hoping to start with some SFH's or small MFH's to build my team and the process, and then hopefully move to larger apartment buildings. I'm from Ann Arbor and my brother and Mom both still live there, and I might even have a good Realtor contact there, which would be a great start.
@Phillip Dwyer , thanks for the tip on checking the local laws; I didn't know that was a potential requirement.
I'm not yet ready to start investing in Detroit, but I do want to be poised to go there soon; I think it's going to be a hot spot once the community there has figured out which neighborhoods are going to be viable. There aren't any big obvious areas yet, but my Mom is constantly watching it to help me find out. :)