I would get last years real numbers from the seller/city/utilities and plug them in. 

The issue here is that it isn't just YOUR butt on the line. 

The most pain in the butt but reliable method is to estimate the life expectancy of your capx items , estimate the cost to replace, then divide the cost to replace by the life expectancy in months and you have your monthly squirrel amount.Did you get a proforma or operating expenses? 

After kicking butt and taking names in the marketing arena for some real estate investors ( doing website, seo, video, photography, direct mail, finding deals, paid advertising, etc ).

A lot of the videos just plug in estimated numbers and don't go over the process of actually finding the numbers to make a deal work.

This listing is shouting at you: DON'T JUST PLUG IN MY NUMBERS AND THINK IS A TYPICAL DEAL. 

And don’t get me wrong, I love the podcast and understand the need for the sponsors and plugging which I don’t mind at all. 

I mean you can try plugging in the HOA fees, management fees, insurance, taxes, 100% of utilities, cost to furnish, replacing linens on a more frequent basis that you'd think, etc. and see how it all works out. 

Plug it into the calculator and take a look. https://www.biggerpockets.com/brrrr-calculatorRemember that on the refinance at most you'll get 80% LTV, but most likely 70% when doing cash out.

I want to pull the plug on it and go through with it, but something in the back of my mind is saying "ask BP".