Code of Federal Regulations 12 § 226.39 (a)(1):
12 CFR 226.39 - Mortgage transfer disclosures.
(a) Scope. The disclosure requirements of this section apply to any covered person except as otherwise provided in this section. For purposes of this section:
(1) A “covered person” means any person, as defined in § 226.2(a)(22), that becomes the owner of an existing mortgage loan by acquiring legal title to the debt obligation, whether through a purchase, assignment or other transfer, and who acquires more than one mortgage loan in any twelve-month period. For purposes of this section, a servicer of a mortgage loan shall not be treated as the owner of the obligation if the servicer holds title to the loan, or title is assigned to the servicer, solely for the administrative convenience of the servicer in servicing the obligation.