One of Relm Pro's three foundational principles is Trust through Sources: every number in the system should be traceable to a citation or marked as an explicit assumption. This page explains what citations look like, where they come from, and what to do when one doesn't add up.
What a citation looks like
Anywhere a number appears in the UI, a small citation chip is rendered next to it:
Year built: 1998 [↗ Property graph] Median household income: $72,400 [↗ Census ACS 2024] Comp #3 cap rate: 5.4% [↗ Listing source]
Click the chip to open the underlying source — a URL, a document page, or the raw API response. For institutional property data, you see the aggregated record. For listing comps, you see the listing page (subject to that platform's link availability).
What "Assumed" means
Some values can't be sourced — they're modeling choices Relm made on your behalf. Those carry an Assumed badge with a rationale:
Year-1 rent growth: 3.0% [Assumed: submarket median rent growth past 24 mo]
You can override an assumption directly. Once you've overridden, the badge changes to Override (you) and the prior assumed value is preserved in version history.
What sources we draw from
The full list is in Where your data comes from. The short version: county assessor records, an institutional property graph, federal demographic and labor statistics, listing platforms, a maps and places API, an agentic web crawler, and your uploads.
When citations conflict
For some properties, two sources disagree (the assessor says 1996, the OM says 1998). Relm's pipeline picks the most authoritative source per field, but conflicts happen. When they do:
- The selected value is shown in the UI with its citation.
- A small "conflict" indicator surfaces alongside the citation chip.
- Click the indicator to see all sources and which one was picked.
You can override the selection if you have local knowledge.
When a source is unreachable
Public listing platforms occasionally rate-limit or restructure their pages. When a source URL stops resolving, Relm marks the citation as stale rather than silently dropping the value. The chip turns yellow with a tooltip ("source returned 404 on last refresh"). You can re-run the section to attempt to refresh the source.
When you spot a wrong citation
If a citation links to an incorrect record (we cited the wrong tax bill, attributed a comp to the wrong asset class, etc.):
- Override the value with what you know to be correct.
- Report it as a bug so we can fix the underlying mapping.
This is important — silent data errors compound. We'd rather hear about a wrong citation than have you work around it.
In exports
Excel and Word exports preserve citations as inline references. The Excel pro-forma puts a small caret on cells with citations; click it for the source URL. The PDF/Word Relm Report puts citations as footnotes.