With the pure Fix and Flip calculator, there seems to be a lot less inputs available for this.  

And I'm not sure how worth it it would be as purely investment because it seems it would only fetch about $500/mo.

I'm also not sure why she paid in USD given that Oaxaca is not one of the internationalized markets where properties are traded in USD.What Trudy does makes sense because she wants to move to Oaxaca and live in that very house that she most likely carefully selected to suit her tastes.As a pure investment though, it wouldn't make any sense.

I say, with a wife and kids, peace of mind would be a higher priority than pure money.

For a pure investment, I would head much further south.

It's a relaxed atmosphere that's purely networking.

You don't want to supply pure speculation to the bank. 

I have 2 properties and I also house hack my primary residence - my househack covers 55% of my mortgage which is a win for me because there is no way I would find a rental for what I pay in mortgage and the extra income from the house hack is essentially pure cashflow that goes towards acquiring the next property considering i have to pay my mortgage regardless.

The biggest issues with Vivint is the maintenance of the batteries.

The lock itself will still work via batteries if there is a power outage or the wifi disconnects, you just wont have app features until power or wifi has been reconnected.