The cost of labor , materials , property taxes , inflation , interest rates  etc .

We're likely in decent shape the next year or so, but in my mind, inflation will be key to watch. higher inflation will mean higher rates- may be good for property values if the overall economy stays strong, but inflation will likely raise interest rates. 

., deductions and depreciation), and an inflation hedge, as rental income and property values often rise with inflation.

To accomplish this, you need an income that outpaces inflation.

The result is an even deeper inflation than what we already suffer from.

@Jay Hinrichs has posted on that in the past.Many people like to try and hide their identity because of the spotlight effect which refers to how people often overestimate how much others notice (or care about) them, effectively inflating their own importance in society. 

This implies your return numbers are inflated.  

I work with OOS investors from similar west coast inflated markets to make some passive income here on great properties!

Generally speaking, if you borrow money at 7% interest and your investment is earning a 10% return, 10% - 7% = 3% and you are not growing faster than inflation.

Same result as above.A third alternative is forced inflation.