Every bond salesman and trader has read one or more of his books. 

If I'm greedy I could lose a lot short term.

Do yourself a favor and also keep it simple, you have a great opportunity to get in and gain experience in a very safe simple setting, don't screw it up by getting greedy and over-complicating things. 

In my experience, this can be anywhere from maybe $500 to several thousand in greedy jurisdictions.Very difficult to answer your questions with precision. 

Hmmm............so long term tenants here in the Bay Area want Rent Control.....AirBNB listings have dropped dramatically because The City of SF got greedy....in Richmond you literally have to pay for your tenant to move out if you no longer make your rental property a rental property.....1.

However when you see great deals passing by, the greedy nature wants you to jump in.

Don't be greedy, but make it worth your time.This is of course just the high points.

Politicians want to look like they are taking care of the "little guys" and in many cases they do that by talking about the greedy nasty ole Landlords who are only out to squeeze the last few bucks out of helpless tenants.

But since 7% is not 30% i don't know if i'm getting greedy and i'm looking to sell my condo, cash my chips and but another two pre construction units looking for returns over 20% anually.

Me thinking the same like that before, til I make a realized capital gain of $120k in just four months.Even my contractor is surprised.I'm thinking more like stock trader rather than typical flipper when it comes to real estate, I examine home price appreciation extremely carefully.Just this month only I made another $120k from selling house , 120k from zillow predictable price LOL , I just time it correctly LOL