It kind of went along with "of course we're removing wallpaper and repainting".To clarify, I was not using THIS property for the HELOC, it was my current house and yes, Ron is right that I was denied due to DTI.

Of course, this STR business can be a 24/7 kind of thing the way I run it. 

Short Story: Refinanced 5 single family units into a 24 unit complex.Back Story: Purchased my primary house(105K) thru auction with a very friendly but very real loan thru my parents(70K), I was originally looking at 30k houses and this one didn't sell at auction and kind of fell into my lap.

That is very kind. 

Our current CPA is kind of too hard to work with is too old school

Now and then we come across the kind of deals you are referring to. 

I am curious how people ran the numbers but also what kind of information was put together for investors and/or financing.

Then call the architects and ask if they do your kind of project.

What kind of help/references do you need?

You're still on a learning curve, so be kind to yourself.