@Alex Graebe I am on the same boat as you. I have all similar questions like yours! haha.
I live in the Bay Area and is looking to invest in Sac area. I have done a lot of calculations for like 100+ properties with a mix of SFRs, MFRs, and Condos. I agree with Wes, that MFRs yield better cash flow.
After learning so much on BP, I think I have my answer on the whole purpose of my investing pursuit. I have to accept the fact that hoping on a good cash flow is going to be hard. I dont want to get properties in a class B areas unless it yields a VERY good cash flow. So far, I dont see any.
With that in mind, I think I will settle with a class A with a "A" Tenants who won't give me much headache and stress. I live 2-2.5 hours drive away. I certainly not want to deal with problem tenants that I have keep going back and forth.
In the back of my mind, as long as net cash flow is not negative, I should be fine. I'll just wait for appreciation and the house pays for itself.
I maybe wrong in all these, so, I am waiting for others to chime in as well.
I am going to Sac area tomorrow to see my agent and have a tour of the areas.
Good luck!