The best way to connect and learn is to be in rooms where it's going down.In terms of captial your best bet is to focus on a primary income that cash flow sufficiently, saving as much as you can and doing something real estate related so you can get familiar with the industry.

There’s huge retal income potential if you nail that balance between improvements that wow tenants and improvements that merely look fancy but don’t justify higher rents.I’d also keep an eye on how your high end plan fits the local demand.

I specialize in STR & Co-living concepts, which I recommend for the highest rental income potential! 

Investors often obsess over how to defer tax obligations and ultimately make poor investments due to being hyper focused on taxes.

If your firend wants to stay in the place AND has the funds/income to do so, they need to refinance in their name ASAP (as part of the process), not 5 yeas from now, not if they remarry, not 10years from now.   

Some of the best investment were made in bad neighborhoods and higher crime rates then as usual the area becomes gentrified and continues to grow in both equity and passive income.

@Zach Howard there are a few loan types here in the states for foreign nationals, some that require personal income verification and others that do not.

For me as well as the seller.First, you have to define Sub to financing.Do you mean the reckless kind where you overpay for a property, take over the financing and borrow from others to cover closing costs and holding costs when you have no money, no credit, no income, no reserves and can't tell a warranty deed from a deed of trust and you close on the kitchen counteror do you meanbuying below market value, already having a nice income, having reserves, using escrow and title, already understanding the due on sale clause, have done a lot of creative purchases and know when to use and when not to use creative finance and how to recover if something goes amiss?

The cost of labor , materials , property taxes , inflation , interest rates  etc .

At that time, my friend encouraged me to get into real estate with the idea of creating passive income and wealth in future (via appreciation).