Long term wealth strategy

[Travis Sterner]

I recently masterminded with a vary high net worth individual. His wealth was not build with RE, but he does invest there. His strategy with income is simple and clean. His profit goes 50% index funds and 50% multi family RE. Reasoning is this: preservation wins in the long run. Reminds me of buffets rule #1 "don't loose money" 

What do you guys think??