If the terms of the modification materially affect the terms outlined on the Deed of Trust your attorney/title company might suggest also recording the Modification. 

Also any advice on any subject of the matter would help.

If you sit on the cash out money too long and you start to erode the principle by using it all to pay for the mortgage on the subject property, you will loose the money's ability to do its thing.Good Luck

We texted and emailed, she never replied regarding the subject. 

@Jordan Kelly There are very competitive asset based or "commercial" products out there that will base the loans entirely on FICO, Experience and Subject Property Cash Flow. 

The choice for Brazil is not the subject of my question.

I know this question is subject to way too many things to actually answer but philosophically, how much is enough?

I've renovated properties that looked like this with the smoke stains outlining where everything hanging on the wall was.

You are the only one who can tell if this is a "good deal," as every deal is totally subjective.

But I'm not sure what you switched to this subject...