For example, I purchased a property because of good economics and turns out in 5 years it was surrounded by major tech and business centers followed by a lot of residential development which tripled in value and doubled rents.

Historically, Edmond is on average a higher priced area than any of the surrounding towns in the OKC Metro. 

If I were in your shoes, before looking to go out of state, I would surround myself with local investors and some of them will be investing out of state and others will be house hacking multis like you describe.  

That being said, the main things I’m considering are: 1) finding a personal residence near Austin, and 2) start off building a rental property portfolio in the surrounding areas.

Also, because this was a nicer rental home with premium rent prices, I had a drone video made of the surrounding village area and how my home fits in.

I have heard good things about the metro and surrounding areas of Memphis, TN; Clarksville TN; Dallas TX; and a few others, but from what I have been able to see so far it looks like the readily-apparent deals are drying up.

So I understand Seattle is landlord "unfriendly" - how are the surrounding cities in King, Snohomish, and Pierce counties?  

Feel free to reach out if you ever have any Architectural questions for the City or surrounding suburbs!

(The Wall Street Journal, in the last 12 months, has had articles, that real estate in Florida, which is a goodly number of feet, above sea-level, is now selling for high prices, & intended to be built on, by the wealthy, as refuge from the rising expected ocean, which surrounds Florida.)

I had a very uncomfortable discussion while being surrounded by some large dudes in my yard explaining why I needed to pay the money.