Landlord and owner friendly markets

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I have 2 questions regarding rental markets,

1) Was wondering if you guys would provide some feedback regarding the markets that are best from a landlord and owner's perspective? In other words, states that have landlord and owner-friendly laws. 

2) Which markets have the best ROI as of right now as well as properties (SFR, condos, townhouses) that are still considered reasonably priced? I'd like to use an available $400,000 in cash and diversify into multiple properties that have a very good cash on cash return, but living in Orange County doesn't help and even if I could, the purchase to rent ratio is just horrendous. I've done as much research as I could on my end and from what I see, correct me if I'm wrong, cities like Houston, Atlanta, Cincinnati, and Baltimore all seem to be very good options with the exception of Houston's higher property taxes.

As always, thank you in advance for your answers and feedback.