If you're at the point of looking at props for purchase (as opposed to just generally 'talking' with them about their product) then you should have received a spreadsheet or other specific pro forma ROI calcs for any property you conveyed interest in.

The biggest issue in the conveyance by quit claim deed. 

If they aren't conveying that type of information, they're being lazy AND dishonest, in my opinion.

Congratulations, does the $140k guarantee  clear title conveyance?

But to do so by "flipping" the property, legal title would need to be conveyed to that person.

That said, convey to him that, generally speaking, interest is the reward for lending while ownership & profit is the reward for working.

Print some STOP FORECLOSURE flyers up and convey a message that you can get them out of that situation.

Now they see the value in multi-generational conveyance of assets, and understand the importance of what it (the whole) produces rather than what they could buy if they sold it (the part – their portion/inheritance) all.

Since this wouldn't require traditional underwriting, ie: no mortgage financing involved, are there any restrictions in cash-purchases of real estate where title is conveyed not by a warranty deed but with a quitclaim deed?

Your attempt at trying to convey 'humility' ala e e cummings is failing miserably.This advise is free of charge and I wish you the best of luck, but 'don't' quite your day job!