Smells like a dead fish.
If the lender has actually filed a petition with the court to rescind the foreclosure, that is pretty much an admission of fault. The problem is that if the property was sold at a trust deed sale, then there's pretty much no way to get the property back, other than to purchase it back from the new owner -- which the lender could certainly do, and then return the property to you.
You REALLY need an attorney to "intervene" in the action between the lender and the new owner. You have a possible case for fraud or negligent misrepresentation against Chase, which would get you compensatory damages sufficient to make up for your loss of the property.
And, if you can show that the property had an inestimable sentimental value, then your damages could be quite substantial (big...maybe huge).
Note: this is the sort of thing that makes great media (20/20, 48 Hours, Nightline, etc.), and bad media for the lender.
NOTE: I am NOT suggesting that the lender or anyone else has in fact defrauded you or done anything wrongful, unlawful or illegal. I am simply responding to your statements as if they are true (this is me covering my a**, because I don't want to get sued for defamation).
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