I am brand new to this, and I want to get in the game.

Also, what would you recommend including?

We built our 16 person cabin with fire suppression in it because we didn't want to play games with the definition of bedrooms to skirt around the regulations.While I don't disagree with the point your making, I will say that our interactions with the fire marshals and city officials have been way better than we expected. 

If you include lost rent, damages, etc., then yes, it is very expensive.

I am beginning to get into the real estate investor game.

I'm exploring options and this seems like a good way for me to purchase the next deal but I'm treading lightly as using unsecure loans sounds pretty risky and of course I need to consider ALL things including their terms, market conditions, capital on hand (about 30k to invest) and my strategy which is to BRRR. 

It should be included in the docs somewhere. 

A lot of people just play the waiting game and never get started.

cost me 400 bucks including buying the water heater. 

No better way to figure out what what part of the REI game your interested in.