Reinstatement means to cure the default in your mortgage.

In a majority of states, you have up until five days prior to the foreclosure sale of your home to reinstate the loan.

If you are able to reinstate, you should obtain a reinstatement statement from your special servicer.  The reinstatement statement officially lists the amount you owe the lender.

You may also have the option of paying off the outstanding balance in installments if you are unable to pay the full amount due at once. Such a plan would include paying a portion of your past due amount in addition to your monthly mortgage payment until you are up to date on your mortgage.