I would like to suggest something and see what others think.
What about filing a sworn to and notarized Affidavit and have it recorded in your property records, describing what is going on and that your home appears to have been targeted by a theft by deception scheme. I would also alert the County Register that someone may attempt to file forged documents against your property in an attempt to steal it.
Many county registers are issuing "Property Alerts" on their websites to ―"allow property owners to take appropriate action should they believe fraudulent activity has occurred with their property". It seems that informing them and filing an affidavit would be an appropriate action.
Since MERS is involved, your debt is unsecured and your Deed of Trust or Mortgage is rendered null and void and therefore none of these criminals can trigger the foreclosure clause in the security instrument.
What will the criminals and the Title company do when they see and read your sworn Affidavit?