I've read Michael Blank's book: Financial Freedom with Real Estate Investing and have started to do some research on markets I want to invest in. 

I've been relentlessly researching all things real estate over the past couple years - reading countless books, watching hundreds of hours of YouTube videos, listening to thousands of hours of podcasts, etc.

Taking action before you know anything is going to real estate investing meetups, asking smart questions in the forums, building relationships, reading books, and listening to podcasts.

If you are going to do it yourself and be successful, you must know the law inside and out and learn how to resolve problems before they happen.If only someone wrote a practical how-to book for DIY Landlords...

I put this into Google Sheets, and got 31.85%, whereas the book answer is 11.02%.

That can take longer than most people would be comfortable with on their investment properties but once you're on the books, things tend to run pretty well.

The Holding company will be the "Member/Owner" of the 3 LLCs (2 property holding LLCs, and the new Property Management Company LLC).The purpose for this then would be that I would really only need to manage "books" on the property Management LLC, and because the Holding company was the owner of all 3 of these LLCs, I could use the property Management LLC to pay all of the bills, collect the rent, maintenance etc. 

@Edwin OrtizI have a book called Creative Cash.

Wow, that is NOT great, you would get better results from calling the phone book eve on a first pass.

I get 95% of my bookings from Vrbo.Absolutely review your pricing.