However, I think we can all agree that the number of books you read and the number of podcasts you listen to are essentially irrelevant until you start putting that knowledge into action. 

Hence, they get more money if you pan out.Let's start with the investor-friendly part of it.

This house was very nice and clean (build later 1980) My tenant recently claimed there is mold on 1fl (it is like basement as there is no window, it is next to garage) When i see, the mold is not only one area but it seems widely spread on the ground floor (laundry room, wall, celiling etc) Since it is OOO investment, it is not easy to deal with mold issue.

She knows building codes inside and out.

So when do we start to see the extra .25% hit on the loan side?

Sure, we changed certain things, but it was way cheaper than starting from scratch. 

How does one go about determining what a "good" market is to start out?

@Roman A Sandlermore important than picking a market is having a plan for building a network.just to be blunt, i think a lot of investors pick a random market using a formula like you did, rather than picking a market where they might have some kind of advantage. 

BiggerPockets is full of resources designed to help you along your journey, whether you are just getting started or a seasoned investor.

I'm a real estate investor currently focused on building my portfolio in Detroit.