First, do a search for a "Produce The Note" attorney, this isn't some flakey thing like the Liberty Dollar (the guy would have been fine if he hadn't called his coins Dollars) it's the simple fact that if I claim that I own my neighbor's car, and I can't produce papers saying so, I have no standing. Meanwhile the neighbor can at least show he's been registering it (paying homeowner's insurance) putting gas in (paying its bills) etc and they laugh me out of court.
Second, consider seriously dong the jingle mail thing or simply stopping paying, get yourself set up to survive. They're not going to care about you when you've sent them your last dollar and you're in a homeless shelter. If you can buy something free-and-clear like some "junk" land you can put a trailer on, someplace you can make your stand so you won't be homeless, you need to seriously consider this. It's taken them 1-2, even 3 years to evict people who've stopped paying. Some people near me, have their RV all ready to go but it's been 2+ years now and so far they're still in their house, hopefully using the money they're not paying to the banksters, to set themselves up to be OK and not swell the ranks of the homeless.