I also noticed 3 of my kids landlords were immigrants that did it the d fashioned way, they put a lot of money down and the whe family worked on managing the propery, painting fixing collecting rent...This is a good strategy but its like buying a convenience store and working the register every hour its open you can make money but it def not passive.

But 188K people moved into California from other countries (source: https://calmatters.org/explainers/california-population-migration-census-demographics-immigration/)

And given that our borders are still closed, our immigration rate is much lower than in recent years, therefore demand is down.

Some investors get volume pricing for repeat business, or multiple projects.In places like California where's there is a large undocumented illegal immigrant population, the documented person (aka...business owner) undercuts a lot of other business to offer significantly lower pricing on work.

Thank you 4 different visa's and $50,000+ to an immigration attorney lolIt's a $#@% show mateAll the best

In particular I want to know if the area is seeing emigration or immigration, and why. 

This is why immigrant families crush americans over and over and over again.

In 1870,the Taix Family, descendants of sheepherders and bakers from the “Hautes-Alpes” in southeastern France, immigrated to Los Angeles.

You need to get with an immigration attorney to discuss.

For this reason, immigration formalities are not important.