Now there is some extremely dangerous information if I ever saw it. Without even beginning to examine the ramifications of your suggestion, if someone living in a non-judicial state takes that advice they just potentially lost their home. If, as a homeowner/mortgage servicing fraud victim, someone ever intentionally defaults on their home then they stand, and rightfully deserve, to LOSE their home. At the VERY least, deliberately defaulting on a loan means that you are starting your case playing defense which is most definitely not advisable (yet unavoidable in even many of the "good" cases) This has to be the single, most idiotic and potentially catastrophic piece of advice I've read on this board to date.
Dates of assignment notwithstanding, without any documents to look at, my initial guess is that you are looking at the note holder, trustee and servicer (Ameriquest, LaSalle & EMC). Regardless of that, intentionally defaulting on the loan does absolutely nothing but give the foreclosing entity all the evidence they need to go before a judge, assuming that there IS a judge involved (remember judicial v. non-judicial), and simply show that the homeowner defaulted on the loan. The fact that the note holder/trustee/servicer "whoever" (as you stated - which really should be an important piece of information to know in this equation) isn't playing by the rules doesn't mean that you, as the homeowner, are going to be viewed as being in the right by not playing by them either - once again assuming that this is a foreclosure being executed in a judicial foreclosure state. In a non-judicial state they'll simply hold the auction on your front porch and tell you not to scuff the floors during the two hours they give you to move out after the sale.
And nothing, may I repeat NOTHING, is done on their dime - at least initially. Assuming that you can retain legal counsel after pitching to them that you deliberately defaulted on your loan, there stands a good change - most likely a 100% chance when you finish explaining your "They weren't playing fair so I decided not to either" defense - that you are going to have to come up with a retainer of some amount which may or may not be recoverable through the legal process if and ONLY IF you end up winning your case. Lose the case and you're out not only whatever retainer and subsequent legal fees you racked up in the process (for my own example, I've amassed over $60k in fees to date, I believe, only some of which have been reimbursed or even requested) but you are also now HOMELESS.
The number one thing that you can possibly have going for you as a victim of mortgage servicing fraud is education. As you become educated about how you have been victimized you can then begin to amass evidence against your servicer. Once that begins, then you and (hopefully) your attorney can continue to build a proper case that will prove to what extend you have been victimized and, subsequently, damaged.
Assuming that we are talking about the average homeowner here as opposed to an investor, intentionally defaulting on a loan accomplishes one of two things - it makes you financially broke and/or it makes you homeless. Which of those two options is preferable?