AWACSMortgage compliance intelligence from Flightline

Briefings

Weekly briefing, September 7, 2026

Updates published to for Conventional. Built from published records only.

Action required, new this week

Required changes published this week.

Fannie Mae, Selling Guide Announcement SEL-2026-08,
Action required

Selling Guide Updates: Rental Income Restructure, UAD 3.6 Highest and Best Use, NACLI Expansion

Loan impactConventionalReport formatRental incomeShort term rentalEligibilityHighest and best useUnderwritingSecondary

Applies to: Fannie Mae loans using rental income for qualifying with application dates on or after Dec. 1, 2026, and UAD 3.6 appraisal reports; NACLI loans benefit from expanded eligibility.

What to review: First review the mandatory changes: the restructured rental income policy for application dates on or after Dec. 1, 2026 (early implementation allowed) and the immediate highest and best use requirements for UAD 3.6 appraisals; then note that lenders may use the expanded NACLI eligibility to sell NACLI loans without special approval, if they choose. AWACS interpretation

Effective Dec 1, 2026, by application date; other items nowView affected requirements →

Coming into effect in the next 60 days

Effective dates from .

Review recommended

New guidance, clarifications, flexibilities, overlays and insurer positions.

Nothing to review this week.

Threads that moved

Topics more than one source has acted on, with a new update this week.

  • UAD 3.6 appraisal dataset: GSE mandate dates, temporary UAD 2.6 exceptions and mortgage insurer acceptance
    Fannie MaeAnnounced Selling Guide updates on MH Advantage/CHOICEHome alignment, gift donors and credit score clarifications; the summary and effective dates given contain nothing specific to UAD 3.6.
    Fannie MaeHighest and best use requirements for UAD 3.6 appraisals apply immediately, alongside rental income restructuring for applications on or after Dec. 1, 2026 and NACLI expansion.
    National MINational MI will accept the new UAD 3.6 appraisal forms and defers to the GSEs on appraisal review requirements, with a May 3, 2027 date listed for the GSE retirement of UAD 2.6 and existing forms.

Data releases

Data releases and announcements with no direct requirement.