UAD1086

FATAL

Official message text · Appendix H-1: UAD Compliance Rules — URAR, v1.5

The number of living units in the structure does not equal the number of units delivered in the UAD XML for the structure. For assistance with this message, contact the appraisal software vendor.

Fatal — a single unresolved Fatal makes the entire submission come back NOT SUCCESSFUL (UCDP Hard Stop 401).

What triggers UAD1086

The published rule logic, verbatim:

For each IMPROVEMENT, if LivingUnitCount <> the number of instances of PROPERTY_UNIT

• Checked for the Subject property.
• Bound to MISMO data point LivingUnitCount at ../VALUATION_ANALYSIS/PROPERTIES/PROPERTY/IMPROVEMENTS/IMPROVEMENT/STRUCTURE/STRUCTURE_DETAIL/

How to fix it

This requirement applies to the XML data itself. Your form software populates it from the report data; correct the underlying entry, regenerate the package, and re-check.

Because this is a Fatal edit, do not submit until it is resolved — one Fatal bounces the whole package.

UAD1086 is in UADCheck's reference library; automated coverage for it is on the roadmap. The inspection already runs the full GSE schema, the package-integrity layer, and every auto-checkable compliance rule — each report states exactly what was covered.

Begin inspection →

Related messages

Source: Appendix H-1: UAD Compliance Rules — URAR, v1.5 (public GSE document). Verified against the published spreadsheet; not affiliated with Fannie Mae or Freddie Mac.