12 C.F.R. § 614.4337
When a loan or an interest in a loan other than a participation interest is sold with servicing rights, the disclosure shall be made to the borrower in accordance with this section:
(a) The selling institution shall disclose to the borrower at least 10 days prior to the borrower's next payment date;
(b) A Farm Credit System institution that purchases a loan or a non-participation interest therein shall not take any servicing action that adversely affects the borrower until it ensures that disclosure has been made to the borrower of: