We as investors should answer these questions ethically morally and legally and probably in that order. 

Well I usually hate self-aggrandizing, moral hectoring, and sanctimonious preaching but since I'm not blowing my own horn here, but rather blowing the horn of others (...wait that sounded bad...)  

And of course the first guy whose contract fell through offered 100%ARV minus repairs.I don’t know if there’s really a moral to the story.

Taking it sub2 just means you will now morally responsible for making the payments, unless otherwise specified.

Just make sure you are honest, moral, and ethical in everything you do and you will go far!

However its just moral to tell them that you're in the business of making money and that your intention is to sell the property for profit.

I take that list and ask myself who out there has all these things and is achieving them in a moral, legal and ethical manner within the niche that I am growing.

Behind ethics and morality.

As for the moral obligation to keep a tenant at a rate they can afford, it would weigh on me as well.

I have no intentions of ever not paying I want this for my family and myself plus my morals would allow me to do so.