I immigrated to the states when I was a kid and my parents got this Milpitas home for 400k, now it is worth 3X...

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

After a long time;  years,  I got a letter essentially telling me to mind my own business - the EPA had their own methods and didn't need me helping them.Incidentally;  I had the exact same experience after reporting illegal immigrants.

I moved back 3 years ago - was living in the UK for a few years - and can't agree more with @Jim Jopling with the growth of the city. 

It's traditionally a fairly poor working class neighbourhood with many immigrants, but in the recent years, more tourists have acquired property here - due to the location mentioned above and an increase in house-flipping happening here.There are many opportunities for making good RE investments in Barcelona, but if you're looking for a cheap "buy and hold" investment, there might be better cities to place your money.

@Robert Gunby, if you are referring to the EB-5 visa (immigrant investor) program, there are a few key parameters which need to be satisfied, namely $1mil or $500K (in designated areas) AND employment requirements.You can get more info at https://www.uscis.gov/working-united-states/perman...

For example, the stuff I can buy here in Austin would be 3x the price of the stuff I can buy in Michigan where I'm from, but labor prices would be even more different because of the high amount of immigrants here (versus the terrible government in Mi, who knows what would be better).I've found a number of books on the subject.

UK startup, LendInvest, is an online marketplace for mortgages in the United Kingdom.

Let me give you one example of the many things you need to watch.Lets say our government does manage to control illegal immigration.

Both being in London UK.