To make matters worse, this family appeared to be undocumented immigrants and were in a fight with the buyer claiming they paid him rent the month he stopped paying me and so on.

The tenants are all immigrants.  

I have been in bay area for more than 12 years now, immigrated from India.

It's traditionally a fairly poor working class neighbourhood with many immigrants, but in the recent years, more tourists have acquired property here - due to the location mentioned above and an increase in house-flipping happening here.There are many opportunities for making good RE investments in Barcelona, but if you're looking for a cheap "buy and hold" investment, there might be better cities to place your money.

For example, the stuff I can buy here in Austin would be 3x the price of the stuff I can buy in Michigan where I'm from, but labor prices would be even more different because of the high amount of immigrants here (versus the terrible government in Mi, who knows what would be better).I've found a number of books on the subject.

US, regardless of immigration status" quote from an article by Jo Becker, Education/Outreach Specialist, Fair Housing Council of Oregon in an article titled screening without Social Security Numbers: there Are Options!

There are many illegal immigrants who do so, but that is not the majority by any stretch.  

Sub2 Sub 2 and a noteLand contractYou might want to talk to an immigration lawyer about owning property

My wife will stay in Japan for about a year while her immigration processes. 

I really want to start doing something like that. and I decided that starting with wholesaling is the best thing to do since I don't have a necessary budget to do the others.My question is: considering my case, I really don't want to fall for the "unlawful employment" thing with the immigration department because I know it is very tricky.Looking forward to hearing your advice on the matter!