Yeah we should diversify our plans accordinly, also what you think of bitcoin?

I would not do this; but let's say you really want to; you could maybe buy gold, silver or Bitcoin, alternatively just buy something with a value you are sure of and auction it on ebay-that gets done every day.

I hope he is an billionaire already.:-)

On the other hand, say that you find a once in a lifetime deal: an apartment building worth $1,000,000 that your long time best friend billionaire will sell to you for $100,000 (10% of the value).

I currently own a SFH rental in MI, have bitcoin gains, own dividend producing livestock in Africa, and have several other alternative investments and want to make sure I am taking the most tax advantageous approach for all of this. 

They settled for the $1 million insurance policy from the business.Some years back, the billionaire financier who bought over the "Singer" company, in a leverage buyout, long story, things went wrong quickly, he went off to hide out in FL, sunk what he had into his multi-million dollar home, well a multi-million dollar estate, safe and out of reach of his creditors.I didn't try many  quick flips, but I used the HELOC in my home when I tried it, and kept the home in the event things go wrong.

Vacancy does you no good if you are just waiting for the billionaire tenant who fits the bill.

In the bay area, those customers are like in the 100s of millions net worth or even billionaires. 

During 2012 and 2013 together they purchased 4 homes paid for 30+ million dollars in Palo Alto’s Tony Crescent Park neighborhood.These 4 homes are to be replaced with smaller houses on the same lots so new residents won’t be able to see into the billionaire’s backyard.

I must be a billionaire!