The following illustrations are provided as part of the citation quoted:
i. If the borrower is 45 days or more delinquent on October 12, the date that is 180 days after the prior provision of the written notice, the servicer is required to provide the written notice again on October 12.
ii. If the borrower is less than 45 days delinquent on October 12, the servicer must again provide the written notice 45 days after the payment due date for which the borrower remains delinquent. For example, if the borrower becomes delinquent on October 1, and the amount due is not fully paid during the 45 days after October 1, the servicer will need to provide the written notice again no later than 45 days after October 1—i.e., by November 15.
Is this notice required before the 180 or after?
On or before. Using the above examples if you provide the notice on October 13 (which would be after the 180 days) you have not met the notification requirements.
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The opinions expressed are mine and they are not to be taken as legal advice.