First, it's "quit claim," not "quick claim."
Second, that would be unwise for both the family member and you. Why not have the owner simply grant you permission to work with the banks? There's no need for you to be the owner; all you need is the permission of the owner. Contact the banks. Ask which form or form they'd prefer the authorization to be written on, any related procedures (such as having it notarized), get it, provide it to the banks, and you're good to go. That's how investors and short sale negotiators do it.
Hope that helps.