I moved to the USA from Australia 4 years ago so had no network at all.

So its happened before.We have false markets again in many markets.. and much of this created by the out of state investor seeking yield... if no out of country out of state or out of area buyer ever bought a rental in any mid western market  and those markets were 100% relying on local investors your values would not be were they are today.. they are higher because of highly organized and funded marketing campaigns to bring in investors who would without these outside influence's ever have looked at those as possible investments.. its the CA concondrum,  Same with Australia were they bought literlay multi thousands of US sFR's because average price of home in Sydney is 900k or so.. same thought process.  

How to open US bank account staying in Australia and move funds to pay for all expenses?

He is moving back to Australia after the company sells. www.chassisdesigncompany.net chassisdesignco on InstagramDLLuke 2:14KJV 

We have a legitimate subprime auto loan bubble, wall street has securitized cell phone bills and rent payments, the stock market seems to have no place to go but down, incomes are not keeping up with home prices, Canada and Australia are facing housing downturns, foreign investors are bidding up high end homes, private commercial lenders seem to be spending big bucks on finding new customers and HGTV flip shows and investors are all over the place....

I agree with your post even though I am in Australia... it is the thinking behind the post that I agree with and thank you for sharing.

We're in Brisbane, Australia at the moment

However, is there an opportunity to invest in notes in the UK or Australia or even broker them, else well?

I can't speak specifically to your question, but I have close relatives in Australia and I've been to Queensland, so I wanted to reach out. 

Hi everyone We are moving from Australia to live in Temecula / Murrieta CA which is where my wife is from.