Our editorial standards
1. Source hierarchy
Material accuracy, dollar, regulatory, and methodology claims should use this source order:
- Tier 1 — Primary regulatory and standards sources. Federal and state agencies, statutes and rules, Fannie Mae and Freddie Mac guides, CFPB consumer guidance, official data documentation, and applicable professional standards.
- Tier 2 — Vendor-published methodology disclosures. Zillow Research blog accuracy disclosures, Redfin Data Center, the AppraisalBuzz reports, Quantarium and HouseCanary published methodology papers, CoreLogic AVM benchmarking, Black Knight's transaction databases.
- Tier 3 — Reputable secondary reporting. Used for context and discovery, not as the sole support for a material product, legal, or numerical claim when a primary source exists.
We do not cite social-media threads, anonymous forum posts, or unverified vendor PR claims. If a number doesn't come from a Tier 1 or Tier 2 source, we either find one or we leave the number out.
2. Drafting for the buyer's decision
A content brief starts with the buyer, decision stage, question, product connection, source requirements, and known limitations. We do not publish to hit an arbitrary word count, manufacture freshness, or add schema that is not supported by visible content. Search optimization follows the usefulness and accuracy of the page.
3. Fact-checking against primary sources
Our policy is to verify material numerical, regulatory, and accuracy claims against the cited source and remove or narrow claims that cannot be supported. Readers should report any page that falls short of this policy so it can be corrected.
4. Review disclosure
A page should be treated as reviewed by a licensed or credentialed professional only when it names that human reviewer, role, jurisdiction or credential where relevant, and review date. Otherwise it is general educational content from the Twellie product team.
5. Freshness and dated claims
Time-sensitive regulations, rates, market data, and vendor capabilities can change. Pages should display a meaningful review date only after content review; a deploy timestamp alone is not evidence that every claim was reverified.
Disclosure: how we make money, and what we don't sell
Twellie's launch revenue stream is a $50 evidence dossier for each eligible address, with no consumer subscription. Exact-property and source-coverage preflight runs before Stripe, and the public product never includes an automated valuation or offer recommendation.
We do not:
- Sell user data to mortgage brokers, lenders, agents, insurance providers, or any third party.
- Earn referral commission on agent introductions, lender introductions, inspector introductions, title-company introductions, or any service-provider introductions.
- Run affiliate links in our content. When we cite a tool (Zillow, Redfin, HouseCanary, Quantarium, Opendoor, etc.), we earn nothing if you click through.
- Trade or hold positions in any specific property. Twellie has zero financial interest in whether any given home transaction closes.
The full data and privacy disclosure is at our privacy policy; the full terms are at our terms of service.
Corrections policy
If you find a factual error in any guide—a wrong number, an out-of-date regulation, or a misattribution—email editorial@twellie.com. We will investigate verified corrections and should identify material changes and their dates on the affected page.
AI-assisted writing disclosure
Some guides on this site are drafted or edited with AI assistance. AI output can be wrong, stale, or overconfident. The presence of a page does not itself prove human or professional review; named review disclosure controls. Material claims should still meet the source policy above.
What we get wrong (and what we'll do about it)
We are a 2026 product publishing in a fast-moving regulatory and market environment. The following are known limitations as of :
- Legacy articles are quarantined. Earlier broad guides, comparisons, glossary entries, state estimates, and retired-feature pages are excluded from search discovery while their claims and product references are re-reviewed.
- Professional review is not the default. The current public pages are general educational and product content unless a named professional review disclosure says otherwise.
- No headline accuracy percentage is published. Twellie will not market a fixed accuracy figure until an out-of-time closed-sale benchmark supports it by relevant market and property segment.
Contact for editorial questions
Email editorial@twellie.com for factual corrections, source-attribution corrections, requests for additional disclosure, and reviewer or subject-matter collaboration inquiries.
