If I move the business and taxes to the USA through an LLC, would that be a smart move to get funding and better interest rates than Mexico's banks, even though the property is in Mexico? 

If you're the kind of person that needs hard math and graphing to understand things, this is completely the book you need on building wealth through duplex living.If your wife is behind you in this idea, and can see it as a move to financial independence, congratulations, you're in the small minority, as I am.

Due to this, my rent could legally be raised, or at least is in a gray-enough area that I wouldn't want to raise the legality as an issue.I am considering leaving my apartment and landlord at the end of my lease, and moving to an identical non-hotel apartment in the same building.

If you moved and took the equity to a new property could you be making more? 

@Eileen L.Generally it's right if you can grow you income or equity by moving into a different asset type.

Our current housing situation is that we are house hacking by house-sitting for our snowbird mom (so we basically have no housing payments), and we are looking to stay that way until we have to move (5-10 years?).

These sellers typically want a fast sale to move on with their lives and avoid ongoing conflicts.Relocating SellersPeople who need to relocate for a new job, military deployment, or other personal reasons often seek a quick sale to avoid the burden of managing a long-distance property.Inherited PropertiesHeirs who inherit a property they don't want to maintain or manage may be eager to sell quickly.

Population is growing aggressively and jobs are moving here especially with major employers like Intel, Google, Amazon, Nationwide, etc.

I would also not keep the cameras when a tenant moves in, not sure if that's allowed but even if it is that would be weird and scare off people.

A smaller home can offer a lower price point and the ability to renovate so that you can rent it out in as little as 6-12 months.If you buy as a primary you can put as little as 5% down since rates right now are still high 20% is not going to move the rate that much since PMI helps get a lower rate.