Few have sold a lot of their property lately because they think Currency and Stock Market are crashing very soon and everything else will follow.

A new currency will also coe into play.

I read an article the other day (I forget where) about how someone bought a house in Austin using bitcoin and I think it marked the first type a RE transaction had been done with that form of currency.

I wasn't able to find anything in the forums that addressed my questions, so here's what I'm looking to be answered:How can I legally accept foreign currency to do domestic deals?

Well to begin with, I hope you have access to funds - as in almost all cases, there will be some type of currency exchanged to take title.

I have 3 drop shipping businesses that I've started in the last 4 months and have some very promising investments in crypto currencies that I believe will take off in Q3 of 2018.

It's the higher-risk sector of investors, and while there are many who do it, it just doesn't gel with the BiggerPocket's culture.I would compare it to those who throw their money into mutual funds - expecting a safe (albeit smaller) ROI vs the crypto-currency or penny-stock subgroups. 

It is one of the world’s most valuable currencies, so I’d hold on to it.

Why Crypto bitcoin will be the currency of the future.  

Maxing annual contributions in a vanguard target retirement mutual fund IRA and having some fun with crypto currencies