I was extremely poor not too long ago but no one knows I do not have mortgage.

They charge 5% of monthly revenue (rent minus vacancy) as their management fee which I find to be extremely competitive with what others offer.  

Takoma Park has them but the rent control there will kill you.Keep in mind that even in the places I mentioned they only exist in extremely small numbers.

I own all the properties outright, no mortgages.Also, if Trump's bill passes and the corporation tax is set to 15-20%, does that mean it would affect my LLC and will be extremely beneficial to route all my profits through that?

Unfortunately without a contract, verbal agreements aren't worth much.... this happens quite often...I always try to stress contracts if your extremely interested in a property... sometimes others get contracts/offers in faster so it's just part of the game.

Taking the 21,000 and dividing it by $899,000 get you to a cap rate of 2.33%, that is extremely low.  

Since when the City of Portland becomes so real estate investor unfriendly and on the other hand crying out loud for housing crisis?

I wouldn't want to do real estate full time, but just to save on costs when flipping houses in the future.As far as having someone in Portland to manage things while i'm gone, I have one very very close friend that is extremely responsible and willing to help out whenever needed.

But..this is extremely rare - and I never heard of this on a standard home bought by a small investor.

The issue is her tenant is nice, but extremely weird about letting anyone into her property.