I can bet if inflation runs then Boston prices skyrocket, but I doubt Austin does.

If you cannot prove income then our rental DSCR loan will be your best bet. 

I would bet the older homes will see a lot more appreciation than the newer homes, percentage wise. 

If we face any headwinds, liquid investments go first so probably crypto but then you bet equities will get pressed.

It isn't impossible but as @Jimmy Lieu mentioned, there is a steep learning curve.Depending on your liquidity, out-of-state buy & hold rentals could be your best bet if NYC investing is out of the picture.

I am betting your gonna find a lot more friendly amicable persons than shut doors. 

I would say for most people, the 1st position heloc is no a good bet, especially if you have a 1st mortgage rate of less than 5%.Using this strategy with a 2nd position heloc can be just as powerful, so you can have your cake and eat it too!

Your best bet is to get on the phone, get multiple opinions, multiple quotes, and make decisions on the type of build before pulling the trigger.

You bet.

Real estate for the last four years was betting on red or black but the ball was fixed to win as it was nearly impossible to lose.