Li,
I think Dan is spot on. I have SFRs in Austin (Cedar Park and Round Rock )and multi-family in NE San Antonio. These Austin suburbs have solid family neighborhoods, good schools, growing tech base (jobs) and close enough to get to Austin fun spots. I worked for Dell for 18yrs and can support Dan's comments on Apple, Samsung and growth here and more coming. Inventory is at 3mos (healthy mkt 6mos). You see a good solid overall ROI with decent cash flow, debt paydown and appreciation.
For your criteria however (primarily cash flow), I would look at markets like San Antonio and look at multi-family housing (duplexes, fourplexes). I believe you can meet your cash flow objectives, be in growing markets (rental and some appreciation) w/some legs here. San Antonio job growth / wages are a bit different than Austin...think data centers, call centers and distribution centers (Amazon putting in a big facility there). I like NE San Antonio...1hr drive from Austin but this whole I-35 corridor is exploding w/growth. These jobs are mid-range (not high tech) but solid and good for rentals and multiplexes I believe. I"m seeing rents for multis are up 4% and appreciation up 4% in last 6 months in SA.
David