Do you realize that things are so screwed up that the banks cannot produce the original papers showing that they have the right to foreclose? Do you also realize that this means that if people pay the full amount of the mortgage they likely will NOT be able to obtain a clear title? Those who lack the proper papers to foreclose lack the proper papers to deliver your title when the mortgage is paid out. I wouldn’t continue to pay in such a situation. I might move out of the house but I would NOT pay.
Paying off the loan to the servicer is a clear event. Now it isn’t the home owner’s worry about where that money will go — let the financial instruments fight over it with the servicer as much as they want.
What is less clear is walking away from the loan. The structure is so keystone-kopped that it could be months or years before a valid “owner” appears.