Question 2: if homes upside down on mortgage what are my options?

Have you explored any of these options yet?

To leverage the equity for financing my next deal, a second mortgage seems like a more cost-effective option.

Bear in mind that the fiscal treatment of the two options in Mexico is different (withholding tax on the gross income with the fideicomiso vs cost deductions with the corporation).

Have you spoken to an immigration lawyer about your options? 

The previous owner claims they never had the titles to these trailers, so that is not option. 

There are two options I have offered and I want to get a check on here if I am off base with my offer or if I need to push harder.

You aren’t owners with lease options.

The worst part is somehow these big names companies are above the regulation (Well, I guess the regulation was there at the beginning because these companies lobbied the hack out the government) and they can run STR where other hosts can't run. 

They do offer access to mutual funds, but I do not love this option.