Check the boundaries.
Start with municipalities and source membership, not a county label that hides city-only coverage.
KerfList / For analysts
Less reconciliation. More inspectable evidence.
For market analysts, specialist consultancies, and small commercial-property research teams.
Check the periods.
Use same-source comparisons and keep event dates distinct from collection dates.
Check the evidence.
Follow a count back to its source receipt, period, and exclusion rules.
A research input, not a risk score.
KerfList does not forecast, underwrite, or screen people for housing, employment, or credit. Missing values remain missing.
Inspect the evidence →