It seems like the law was written to cover governmental sources of aid and income, but doesn't address other types income.So if a tenant has a tax return with only self employment or passive income can you discriminate against that?

I think properties closest to the Candlestick park would be a good investment that would rise after the new retail, housing and entertainment venues.http://www.sfgate.com/bayarea/matier-ross/article/Candlestick-Park-won-t-be-snuffed-until-2015-5163953.php

Unfortunately I live in southern oregon, and the closest meetings are apprx 4 hours away, which isn't ideal for me since I work 40+hrs a week and I've done some searching and there's only a couple members of BP that don't seem very active.

There are so many different roads you can take in real estate investing that there isnt just one answer to your question but the closest generic answer I can think of is the following...  

Down your way probably the closest one is the EasternMass REIA in Taunton (2nd meeting in Rockland). 

In my case, my grandparents have been living there and they are on government aid.

Since you're way out there I'd probably suggest SDCIA as it is the closest to you. 

A lot of local investors that I network with mentioned Little Haiti and Lemon City closest to Biscayne side as the newest & up and coming emerging neighborhoods.

We are very interested in the home, but need some of this info to determine what is the closest price we can get to for the bank to consider while still making it worth our while. 

They are my closest friends.