Many people have asked & proposed to build such a data base.

The modeling of this is actually pretty easy (see link: 42-unit proforma sample), but my model treats the pre-refi loan as I/O, but that can be updated based on your deal.

Real estate is so localized that most federal based policy changes don't have massive influence.I can see him (semi-)privatizing Freddie/Fannie.

Stong homes=Strong buyers.   

Which I also would tell you that if you have trouble managing finances and poor credit I strongly advise against real estate as its capital intensive and if you struggle now managing money having more money and real estate only exacerbates that issue.

3) Any specific states you recommend to set up any of these (Not sure where I'll be purchasing property yet, maybe Detroit, maybe Cleavland, maybe Augusta, maybe Des Moines, maybe Saint Cloud, maybe Memphis...)4) I already have a LLC based in Hong Kong (We call them limited companies, but the principle is the same).

If the lease auto-renews to a month-to-month, then you can post a letter on their door (take a pic) or send it by certified mail with a signature required with the new terms starting at the appropriate times based on the lease.

Since you're in Texas, I'll use a town like:  Each town will be different based on the population living outside of town. 

Don't put a high list price based on what you want, needs to be based on solds

You say you're based out of Vancouver yet your profile says Seattle.