There are a few online rent collection services. 

No idea about CA but look online sure you can find out easily. 

I saw some brokers online (not the mls) were offering 1,5x the rent I used in my calculation.Though I'd think that was madness (it was approaching 1% then).

U can do that all on line ???

I am very interested in investing in REITs or in online crowd-funding projects to have as a good source of cash-flows, yet I cant seem to find an online broker or crowd-funding website that allows international citizens and international banks.

In Florida there is a very good book for DIY land trust by Mark Warda.There are also more generalist information that you can buy online.

http://www.themichaelblank.com/videos/how-to-make-an-offer-on-a-multifamily-deal-in-10-minutes/

You can find them online here:  http://www.cosl.org/catalog.aspxLittle Rock is in Pulaski County, and they usually have HUNDREDS of properties up for auction, each year.

Rental Property Investing focuses only on rental properties and is a comprehensive overview of investing in that particular field.As for The Book on Tax Strategies, there are no current plans to revise the original book, but Amanda Han recently wrote a new bonus chapter (and a video!) 

I have been reading, attending seminars and watching YouTube videos for a while now.