Loan Mod foreclosing

[Matt Pfefferlen]

Hi- I am interested in  a possible foreclosure auction that has two loans.  The first loan has a loan modification from 5 years ago and this is the loan that is foreclosing.  The loan mod lowers the interest rate, extends the loan repayment period, and defers $60k of principal at no interest.  The first loan is now foreclosing; does the deferred amount have priority over the second?  Not sure if it matters, but the loan mod was never filed with county; i saw this in the BK filings.