Welcome to BP @Michael White . Glad you asked this question. I am also a relatively new investor and have been thinking of approaching pre-foreclosures in a similar way.
You can't offer the owner money back if you do a short sale, but perhaps you negotiate with them to pay to reinstate the loan, and you "partner"(?) with them (since they are still the 'owner' and have all rights as such) in such a way where they agree to give you the right to rehab and/or sale the property and they receive a percentage of the proceeds. Being a partnership, you would sign paperwork to protect your interests, but I thought it would be a better approach and more welcomed than "let me buy your house for what you owe".
From my experience, many times people in foreclosure just don't know how to get out of the situation and/or don't have the money keep up with the bills, let alone to improve the property so that they can sell it. I like to approach situations from a "how can I help" manner and thought that this might work.
Is this sort of what you were thinking?