A well written management contract should clearly spell out what is expected of both the PMC and the owner, to PROTECT both and avoid misunderstandings.

Cash flow is protected rents.

I have a responsibility to protect them from identity theft.If you are a Property Manager, you should only share the minimum and keep it generic.

As you get further away from standard real estate practice, the risk is increased by a “legal” risk that your protection may be interpreted quite differently than you expect by a court and that the subtleties of the protection a mortgage or trust deed document provide with established law and court decisions handed down for (in the U.S.) 250+ years is not existent. 

Often when I work with real estate investors to create asset protection strategies, most tend to prefer a simple asset protection structure (something low-cost that does the job essentially).

Despite the headlines, these areas of Mexico are incredibly safe and highly protected by the government to ensure a steady flow of tourists. 

No vineyard harvesting, only private labeling.

In terms of your grandfather living there as long as he's not the owner having a dwelling fire/rental property insurance policy is appropriate.As @Greg Scott pointed out he should have a renters insurance policy whether or not he's actually paying rent.In terms of liability coverage, that depends on what you have to protect so there's no one-size fits all approach.

So if they are leaning towards more protected, private credit type offerings, then you will have an easier time raising.  

That means more people creating more wear and less money for maintenance, upgrades and city services.The other purpose of these laws is to protect single family neighborhoods to be family friendly (meaning people with children).