The heading shall read: "Rights of Defaulting Debtor under Massachusetts Law." The body of the notice shall read: "You may cure your default in (describe transaction in a manner enabling debtor to identify it) by paying to (name and address of creditor) (amount due) before (date which is at least twenty-one days after notice is mailed). If you pay this amount within the time allowed you are no longer in default and may continue with the transaction as though no default had occurred.
If you do not cure your default by the date stated above, the said creditor may sue you to obtain a judgment for the amount of the debt or may take possession of the collateral.
If the said creditor takes possession of the collateral, you may get it back by paying the full amount of your debt plus any reasonable expenses incurred by the said creditor if you make the required payment within twenty days after he takes possession."
Mass. Gen. Laws ch. 255, § 13I