If the building is currently recognized as a single family residence,  then you are changing use and presumably will need to sprinkler the building and satisfy other fire rating and STC rating requirements not to mention the added costs of having to run mechanicals for multiple units, multiple kitchens, additional bathrooms etc.  

As an investment property owner, this means less maintenance and fewer unexpected expenses from storm related damage, often resulting in more affordable insurance premiums, less wear & tear on mechanical equipment, roofing materials or exterior surfaces.

All investments would be though a bank owned trust fund, or fidecomiso, which we will set up on a project by project basis, and I would advise is the best mechanism for property ownership in Mexico. 

Their combined monthly income is 3X my rental amount but the man's income is in cash (he is a car mechanic).

What systems are in place to ensure all sub contracts are being paid and no mechanics liens are being filed?

I don't like mixing the two - it can get messy if he stops mowing due to mechanical or health issues, etc.

Can someone please let me know the mechanics of the recording process on an owner-financed deal?

But I'm not familiar if title could get clouded from another mechanism at the state DMV for instance Thank you for your response!

This is coming from someone to stepped out of W2 in their early/mid 30s, and I can tell you first hand it's not cheap and anybody that tries this really does not understand the reality of it.To your other questions, cash flow is just a mechanism of leverage nothing less or more.

U want an attorney NOW to explain to you in detail the laws surrounding how the mechanics work.