You should be able to balance paying down your home quicker than the standard 30 years while still investing in real estate, so instead of 1-2 a year, maybe 1 every 2 years?  

My cost to build a 900 sf to 1,200 sf container home is about $90 / sf and that cost comes down in a production environment where materials can be purchased in quantities and the workforce is working on a standard floorplan with multiple units in process simultaneously.

This is standard practice, but there are exceptions.

The way that things like this are typically handled is that if a lawsuit were to happen, since both people have been behaving under the assumption of a lease (the landlord renting their space and the tenant paying rent), they would probably treat it as if there was a standard month to month lease agreement.  

Where I would ultimately like to end up is with multiple properties that I rent out, even on an international level, as I love to travel.In order to achieve my goal: What strategies could you all recommend?

Hard money and standard loans (Conv, DSCR) are unlikely to be available for deals under $75k.

Website is standard...the thing is, if they get your info they will literally harass you with phone calls from some place in India.

Wells Fargo ultimately turned me down because my specialist was completely clueless in general, and because she failed to accurately relay what I was telling her to her "internal contact" on the phone. 

If you have a good insurance broker, you should be able to use a more standard policy though.

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