Mortgage Servicing and Loan Modifications: 12 C.F.R. § 1024.35 Error resolution procedures.
(a) Notice of error. A servicer shall comply with the requirements of this section for any written notice from the borrower that asserts an error and that includes the name of the borrower, information that enables the servicer to identify the borrower’s mortgage loan account, and the error the borrower believes has occurred. A notice on a payment coupon or other payment form supplied by the servicer need not be treated by the servicer as a notice of error.