Mostly California but at least one east coast state in famous for it as well. 

This is relevant for multiple reasons 1) appreciation is where the real wealth is generated in RE 2) real estate has tax advantages over cash flow 3) in CA property tax increase is capped.  

- No it can be any type of investment property- If I did buy a duplex here in CA could I live in one side while renting out the other? 

The PM company’s in-depth knowledge of California’s tenant laws and a rock-solid screening process.Hope this gives you a strong starting point.

I've acted as a "deal warning person" to many new California and a few NYC investors who I've talked to in person, Zoom, and phone calls who want to buy the Midwest or South because the price points are lower.  

.: In California the right of redemption expires the day before the tax sale takes place.

Look on the bright side.....at least you're not in California....

Luckily coming from CA we have almost nothing you’d consider expensive.

I live in CA full time so only go to Portugal every few months.

- If I did buy a duplex here in CA could I live in one side while renting out the other?