source:
  type: guide
  id: fnma-sel-b3-2-04
  authority: Fannie Mae Selling Guide B3-2-04 — DU Documentation Requirements
  description: Fannie Mae Selling Guide B3-2-04 — DU Documentation Requirements.
  coverage_tier: operative
obligations:
- id: fnma-sel-b3-2-04-full
  canonical_id: fnma-sel-b3-2-04-full
  section: Fannie Mae Selling Guide B3-2-04 — DU Documentation Requirements
  type: do
  tags:
  - regulator-direct
  - fnma
  - selling-guide
  - corpus-expansion
  - tier-operative
  primary_source:
    tier: 1
    authority: Fannie Mae Selling Guide B3-2-04 — DU Documentation Requirements
    source_class: fnma-guide
    source_url: https://singlefamily.fanniemae.com/media/document/pdf/selling-guide
    snapshot_id: 5f7b8b79da595d76
    fetched_at: '2026-05-25T14:09:57Z'
    content_hash: sha256:98cf85a02861bbe84914a0e339b327c8fc131869a8a573882007bbeea60c5701
    paragraph_quote: 'B3-2-04, DU Documentation Requirements (03/31/2015) Introduction
      This topic contains information on DU documentation, including: Required Documentation
      for the Permanent Loan File DU Documentation Requirements Transferring Documentation
      Flexibilities to Another Lender Required Documentation for the Permanent Loan
      File The following documents must be maintained in the permanent loan ﬁle: the
      complete loan application (the full Form 1003), the ﬁnal DU Underwriting Findings
      report, and the ﬁnal Underwriting Analysis report produced by DU. Lenders are
      not required to prepare a Uniform Underwriting and Transmittal Summary (Form
      1008) for loans underwritten with DU and subsequently delivered to Fannie Mae.
      Published May 6, 2026 288 DU Documentation Requirements DU indicates the minimum
      veriﬁcation documentation requirements necessary for the lender to process the
      loan application. While DU may oﬀer a reduced level of documentation, a more
      comprehensive level of documentation is always acceptable and in some instances
      should be required by lenders when circumstances in the loan ﬁle warrant it.
      DU documentation requirements are based on the speciﬁc risk factors present
      in each loan ﬁle. The requirements appear in the DU Underwriting Findings report
      in the section titled Veriﬁcation Messages/Approval Conditions. DU indicates
      the minimum documentation requirements for income and asset veriﬁcation, credit-
      related documentation, and level of property ﬁeldwork. Transferring Documentation
      Flexibilities to Another Lender The documentation ﬂexibilities that apply to
      loan caseﬁles underwritten with DU are transferable to any lender that subsequently
      delivers the mortgage to, or services it for, Fannie Mae. The terms of the closed
      mortgage and the information in the underwriting ﬁle must match the data on
      which DU based its recommendation. For additional information, see: B3-2-10,
      Accuracy of DU Data, DU Tolerances, and Errors in the Credit Report, and B4-1.1-02,
      Lender Responsibilities. Recent Related Announcements There are no recently
      issued Announcements related to this topic.'
  judgment: false
