There can be gold in knowing their social handles, both for screening prior to approval and to attempt contact if they disappear. 

Your list of questions for the lender is a gold mine! 

Just like when someone wants to own gold, silver or platinum.

FX, Crypto, Flipping Houses, Sub2, Gold and Silver, Rare Earth Metals, Day Trading, Bernie Madoff, Vending Machines, Car Washes, Amway, any MLM.....whatever the dream of the day is.In all of them, you can make money, you can get rich, but almost always it takes a lot of hard work, blood, sweat, tears, missed holidays, working on weekends, money, risk, stress.

It is house-hacking gold haha.I want to chime in about the property location.

Supplementing her SS with rental cash flow income may be enough for her to go enjoy life to the fullest AND leave the legacy for her kids and grandkids after she’s gone (that’s also very important to her). any thoughts, experiences and nuggets of wisdom are welcomed!

Investors receive % annual cash flow, increased deprecation benefits, refinance distributions, with long-term generational returns.Since they're focusing on multifamily units here in California I don't if it would work for you, but applying the same equity harvesting strategy is gold, imo.Congrats on retirement btw!!   

Concept2 seems to be 'gold standard' out there.

I don’t have to pay anything, all debt denominated in dollars is illegal since the Federal Reserve no longer back the currency with gold.

A great mortgage lender is worth their weight in gold (or whatever loan amount requested.)