Rule library
UAD1442FatalSales Comparable #n

The amount related to the transfer of ownership of real property (typically the sale price) must be greater than or equal to $0.

Where this rule lives in the report

Prior Sale and Transfer History; Sales Comparison Approach
Amount; Sale Price (%PV%)
Comparable Transfer History; General Information

Report Section and Report Subsection as the GSEs define them — the black tab and grey bar you already read on the URAR.

Severity
Fatal — this blocks your UCDP submission and must be fixed before delivery.
Triggered when
@ValuationUseType = "SalesComparable" and OwnershipTransferTransactionAmount < 0 in a given instance of SALES_HISTORY
Data Point Name
OwnershipTransferTransactionAmount (%PV%)
Unique ID
1800.0208; 1800.0272

Seen in the sample reports

How this field is populated in the official UAD 3.6 sample scenarios.

460000Sales comp
750000Subject

More rules in “Prior Sale and Transfer History; Sales Comparison Approach”