Bad information in this category costs real money. A Canadian buyer who misses a T1135 filing pays a minimum $2,500 penalty per year. An American who buys in Mexico's restricted zone without understanding fideicomiso structure can hit title problems on resale. A buyer who reads a "Mexico is dirt cheap" listicle and budgets without notario fees, ISAI, and trustee setup ends up tens of thousands of dollars short at closing.
This page documents how CrossingHQ researches, sources, fact-checks, and updates content. We publish institutionally — under "By the CrossingHQ Editorial Team" rather than individual bylines — and the standards described here are how we earn that. If you are a reader making a real decision based on something you read here, this page is the evidence base for why you can take it seriously, and where its limits sit.
For weekly updates on the rule changes, treaty shifts, and corrections that move through the site, subscribe to the Brief — /newsletter.
How we source
Every claim that affects a buyer's money is cited inline to a primary source. Tax rates, fee schedules, statutory references, and quantitative claims about markets get a citation, every time. We do not cite forums, listicles, real-estate brokerage blogs without credentialed authorship, or AI-generated content farms.
We do cite:
- Government sources. The IRS, US Treasury, and CRA for tax content involving American or Canadian buyers. Mexico's SAT for tax matters, Notariado Mexicano for notario practice, BANXICO for currency and rate data, INEGI and SHF/CONAVI for housing market data. State-level tax authorities in Spain (Agencia Tributaria), Italy (Agenzia delle Entrate), and equivalents in every country we cover.
- Named cross-border professionals. Articles published on the websites of named CPA firms (Greenback, MyExpatTaxes, Bright!Tax, 1040Abroad, and similar firms with cross-border practice), Big 4 accounting firm publications when authored, and named real-estate attorneys with verifiable bar credentials.
- Trade and peer-reviewed publications. Tax Notes International, Bloomberg Tax, Journal of International Taxation, CPA Canada publications, and similar outlets where the editorial bar is high.
- Industry associations. AMPI (Asociación Mexicana de Profesionales Inmobiliarios) for Mexican real estate, the Notariado Mexicano for notario practice, and equivalents in other countries we cover.
Citation minimums are enforced at build time. A page below floor does not publish:
- Tax content: 6 to 8 credentialed sources
- Legal content: 4 to 6
- Comparison content: 4
- Reports: 10
These are not stylistic targets. They're enforced.
What we don't cite
Reddit. Quora. Facebook groups. Content farms. Brokerage blogs without identified credentialed authorship. AI-generated aggregator sites. Where competitor content cites these — and most does — we treat that as a signal the competitor's content is not held to a comparable bar.
How we handle prices and currency
Every price on the site is shown in USD and Mexican pesos with a dated BANXICO FX reference rate. We pull the FIX rate from BANXICO's daily series[BANXICO Sistema de Información Económica, Tipo de Cambio FIX, 2026-04] and refresh daily. A property at $400,000 USD shown today carries today's rate; the same number shown six months from now carries the then-current rate.
This is the only honest way to publish prices on a site whose readers think in two currencies. Currency risk is real, and burying it under a single static peg would mislead the buyer who's actually wiring funds.
How we treat editorial review
CrossingHQ is at a stage where retained named professional reviewers — a US CPA on retainer to sign off on tax pages, a Mexican real-estate attorney on retainer for legal pages — are not yet the default. The editorial standards on this page are how we compensate for that absence:
- Citation density above industry baseline. Six to eight named credentialed sources per tax page; the typical content site does two or three.
- Source quality bar that excludes forum posts, brokerage blogs, and aggregators — sources that drive a meaningful share of competitor traffic.
- Standard tax, legal, and financial disclaimers on every page in those categories.
- Quarterly review cadence on tax, legal, and financial content; semi-annual on geography and structural content.
- A "Current as of [date]" stamp on every page so readers can see when the underlying research was last verified.
- An explicit upgrade path. As individual pages reach traffic and revenue thresholds that justify it, we add paid named reviewers and surface their attribution. The "Reviewed by" template slot is preserved across the site so reviewer attribution drops in without page rework.
This is a measured approach, not a permanent one. We publish institutionally now because the alternative — naming individual writers on YMYL content without paid expert review — is the worse trade for both the writer's liability and the reader's trust signal.
How we fact-check
Every page passes three checks before publication:
- Citation density and source quality. Build-time validation counts the
<Citation>components on the page and refuses to publish below the cluster's minimum. The same check flags low-quality URL patterns (Reddit, Quora, content farm domains) and refuses pages that include them. - Structural compliance. City pages must include a "Who shouldn't buy here" section. Comparison pages must include an upfront recommendation in the first 200 words. Trust and process cornerstones must include a worked example. Enforced mechanically.
- Voice check. Real-estate marketing language (
now is a great time to buy,your slice of paradise,the dream of) and AI tells (delve,tapestry,navigate the landscape) are flagged at build time. Pages that contain them do not publish.
How we update
Every page on CrossingHQ carries a lastReviewedDate.
- Tax and legal content: reviewed quarterly
- Geography and city content: reviewed semi-annually
- Reports: not reviewed after publication — when a new quarterly report supersedes an older one, the older one is preserved as a dated archive
When a tax law or fee schedule changes between scheduled reviews, we update the affected pages within 72 hours of confirming the change. We log the change in lastReviewedDate and, for material changes, add a "What changed in [month]" note at the top of the page for at least one full review cycle.
Two real caveats. Bureaucracy lag is real — SAT, CRA, and Agencia Tributaria can sit in months-long form transitions between an announced rule change and the new form's actual release. We note transitions explicitly. And regional variance is real — Mexico's ISAI varies by state, Spain's ITP varies by autonomous community, Italian succession rules vary by region. We cite at the right level: federal where the rule is federal, state or regional where it isn't.
Our editorial team
The CrossingHQ editorial team includes writers with backgrounds in real estate journalism, cross-border financial professionals, and Mexico-based legal researchers. We do not disclose individual identities. This is an editorial-independence stance: institutional bylines remove the incentive for individual writers to soften coverage of brokerages, banks, or product categories that might otherwise affect their personal reputations or future employment in the industry.
The team is led by an editor-in-chief with prior experience in cross-border financial publishing. The editor-in-chief is responsible for the editorial standards on this page and accepts feedback at the contact address below.
We do not pay writers based on article performance, traffic, or conversion. Writers are paid for their work on a flat-fee basis and have no financial incentives tied to recommendations or framings in their content.
Disclosures
- No paid placements. We do not accept payment, free trips, comped stays, or any other consideration in exchange for editorial coverage of brokerages, developers, properties, lenders, or any other entity.
- No affiliate revenue on cited sources. When we cite a CPA firm, law firm, or other professional service in editorial content, the link is for source attribution only — not affiliate revenue. We do not have referral arrangements with the named firms we cite.
Errors and corrections
We aim to correct errors within 72 hours of confirmation. To report one, use the contact form with the page URL and the specific claim you believe is incorrect. You do not need to identify yourself.
When we make a material correction, we update the page's lastReviewedDate, append a correction note at the bottom of the page describing what changed, and preserve the correction note for at least one full review cycle.
What this page is for
If you are reading this because you are deciding whether to trust a CrossingHQ article on a real decision — buying a property, structuring a fideicomiso, filing a T1135, applying for a D7 visa — this page is your evidence base. The standards described here are how we earn the right to be cited.
If something on the site does not meet the standards on this page, that is a bug. Tell us via the contact form and we will fix it.
Current as of 2026-04-30. We review this page semi-annually. To report an error, use the contact form.