My wife and I are investors who moved from Perth 2 years ago to Houston. The move was based on Housing affordability (average household income divided by the average house price) in Perth it was too high and Houston was so low.

In Houston we invest in the cheap houses in the high income areas. Kingwood and The Woodlands are suburbs were the average income is around 100k average house prices 180k. I think they are the best suburbs in the world for investing and living. We are focusing on unrestricted properties (can be subdivided, commercial, industrial, apartments, housing, business, etc, etc) but anything makes money here. Residential demand is high, capital gains is low to high, positive gearing exists

The last rental property we purchased was for 66k, we rent it out for 800 a month, very low for the area. It is on two lots so we can add another house (40k and 8 weeks later) we can double the rent. We have had OK tenants, but here you can get a home warrenty (about $300 per year), so when anything goes wrong the tenant calls up and we have to pay $60 excess, they have had to fix the A/C, heating and plumbing so far this year, all for $180+300.