I understand annuities, bonds, bank accounts but bitcoin?

You can't sell a portion of a property like you can sell portions of stocks, bonds, mutual funds, etc.

The new law clarifies and strengthens the current laws surrounding squatting, offering clearer guidelines for property owners and law enforcement.

You can combine both sources in one document to strengthen your proof. 

Problem is only "RE pros" get to do it.There are 3 income classifications in the US - Active, Portfolio, and PassiveActive income is income derived from your job, or normal trade or business.Portfolio income is derived from bank instruments - stocks, bonds, etc.Passive income is income earned from investments.Active losses can wipe out both passive and portfolio income, but it doesn't work the other way around.Portfolio (capital) losses are limited to $3,000 annually.Passive losses can only be offset by passive gains.Real estate rental income by its nature is deemed passive per IRC Sec 469One way to get around it is to become a pro - spend more than 750 hours or 1/2 your time in real estate.But most folks aren't real estate pros.

I’m aware of loss harvesting when it comes to stocks, bonds, etf’s, etc. but how can this occur with real estate?

Focus on simple, predictable renovations and strengthen your network with wholesalers, agents, and contractors.

It's hard to beat risk-free bonds, especially short-term ones. 30-60 day t-bills are going at around 5.2-5.4%. 

What's next, Punxsutawney Phil choses bitcoin over US savings bond.

These rates of return surpass what bank-provided bonds and stock dividends offer.