Does that mean that if he defaults, I can go after his assets such as his personal residence, 401K, bitcoin, etc.?

This goes from Warren Buffet to Michael Burry to Bitcoin to housing instagram fellas. 

So I am planning to do a cash out refinance on my house and buy additional real estate (or some other investment, could be stocks, bitcoin, multifamily syndication, etc). 

If you can, goto coinbase and set up the donation crypto for bitcoin, ethereum...and I can link this to a project in the future for sure.

Go buy some gold, I hear it’s going to $10k/ounce, or bit coin, it’s going to $250k.

So whether you have your money in real estate, P2P, notes, ETFs, bitcoin or stocks, I just want to emphasize the obvious lesson to readers - always ask yourself what happens if your expectation on timelines are wrong, and what will you do if your main exit strategy is no longer possible.

What about Bitcoin, While block chain is a great idea, it is not fool proof.  

Anyone that says the market won't slow/reverse is ignoring history and you can say the same about people who always say the stock market goes up and so does bitcoin.

He recently came out with a "world's first blockchain NFT for tokenized real estate," (Tykes), hyped it up a ton, and then shortly after launch completely stopped marketing for it.

It sounds like you are familiar with bitcoins blockchain ledger - did you know there are currently estimated to be more than 6 million unique users of bitcoin's blockchain?