For example, if a 3/4 bedroom house with 1or 2 bathrooms is going to cost $300,000 -$400,000  but the market is only renting out at $1400-$1600 / month, that doesn't leave anything leftover after expenses.

*********************************************B) 3 Duplexes - two story, 1990's construction with roofs less than 2 years old, HVACs less than 5 years old,, each side is a 1000 square feet 2 bedroom, 1.5 bath unit - $345,000 (or $115,000 each).  

I am considering getting roommates to live in the other two bedrooms.

Hello,My brother is relocating to Long Beach and would like to find a studio or one bedroom by April 1st.Is there property managers out there or owners that would have a contact for me.Thank you,

One of which is an 9 bedroom multi-family with 2 legal units and a bonus 3rd unit.

If the market truly is saturated, even the new fancy apartments will have to fight for renters with more concessions and rate wars.For example, here is a property that was recently on the market and if I remember correctly its listing price was $210,000 or $220,000 and I found a couple of similar 2 bedroom units renting at $750 so I will assume that to be the market rate here. 

We have updated the side of the duplex we live in (added a a bedroom in the basement as well as finished off part of the basement for a family room.)  

I bought my first house with a 203K loan but never rented out my second bedroom but looking back I would have done that in a heartbeat.  

They are very informative, and contain ample information. https://www.biggerpockets.com/blogs/

One of the Bedroom windows is slightly damaged, so I think a spray and slight repair will be enough.