Cashflow keeps the lights on but appreciation will make one wealthy. 

real estate training has always been a big money bizz.. its really promulgated though with U tube and how easy it is to throw you stuff out there.. but to really get wealthy doing it you do need a ton of dough for marketing or a great relationship with a fullfilment company.

Thanks Tom Wheelwright for writing the book "Tax Free Wealth".  I

It's cultural actually LOLback in early 2000 before all these ADU becomes a trend, some part of the city in San Jose is already congested becayse many houses are already having too many ADU, converted rooms, rent by room and so on and so on.

I learned that good debt will make me wealthy MUCH faster.

Your cavalier attitude about buying (especially retail condos) in SF or Bay Area, particularly in today's maxed out market, is usually not a great first investment for someone who isn't already wealthy.

If you go modern make sure it is unique.The interesting part of modern is a large percentage of renters come from demographics with  different cultural backgrounds than our family's.

Never wanting to grow their wealth. I

You must know the culture and the understand the community you want to serve.

The power of leverage is one of the main benefits that distinguishes RE from other investment choices, and the refi is where real wealth is made.