But if you're not a US citizen, then it gets a bit complicated. 

Warm blooded citizens are citizens of the US, so effectively have standing in each State (my layman's understanding)...Why do you want the trust? 

Currently, my primary focus in RE has been university student housing and I feel like senior assisted living will be similar in concept but with the business of senior care as an overlay.

We, as RE investors and Landlords, provide a great service to the community and our fellow citizens by taking the risks and providing safe, clean, affordable housing (well the vast majority of us do :-) 

The state's insurer Citizens has limits on rate increases and is more flexible with requirements.

Currently, I am a US citizen (born and raised in Florida), but I live and work in Shanghai, and I have been here since 2014.

Either roll up your sleeves and learn every aspect of senior care or bet on someone you can trust to run the operations.

You shouldn't have any problems with Wells, BOA, Citizens or a mortgage broker like Guaranteed Rate.

Perhaps Merchants Bank or Citizens are still doing HELOCs. 

He used a similar example of loaning on a senior living "home" (some investors buy a home and create boutique senior living accommodations).