How the guides and figures are checked.
The standards behind the Guidance library and the tools it explains, gathered from the pages they govern into one place.
1. Figures come from a deterministic engine
The released public DSCR and payment calculators do not use a large language model in their numeric calculation path. Their outputs are computed from the inputs and formulas in the application code.
The same inputs always produce the same output, every time, with no randomness anywhere in the calculation: that's what deterministic means. Every worked example in the guides is recomputed by the platform's deterministic engine, the same engine behind the DSCR calculator.
AI has a real place on the platform: writing prose and ranking options, never producing the authoritative number. Why deterministic models matter for numerical estimates explains where that line sits.
2. Sources are checked, and cited where they are used
Every statute, form, and figure is checked against the cited primary source before publication.
Each guide comes with its math and its sources: where a claim rests on a statute, a lender or agency form, or an agency page, the guide links to that source in the text.
Where a tool offers to fill a field from public market data, it shows the source and its date beside the value (Zillow ZORI · May 2026; realtor.com · May 2026; U.S. Treasury FIO · 2022). Nothing changes until you apply it, and every field stays editable.
3. Revisions are dated
A guide that has been revised shows the date of its latest revision, “Updated” and the date, next to the date it was first published.
Figures in the guides are illustrations. A provider's current, dated eligibility and pricing materials decide what actually applies, and they change, so verify against them first.
4. Who writes and reviews the guides
Every guide closes with a byline that names who wrote and reviewed it, together with the Greenstreet Research editorial team: the editorial and model-validation desk behind the Guidance library.
The review before publication is the checking in sections 1 and 2: every statute, form, and figure against its cited primary source, and every worked example recomputed by the deterministic engine. The byline links back to this page.
5. What the guides and tools are not
They produce educational estimates, not financial, legal, tax, or investment advice. Confirm any figure with a licensed professional before relying on it to close a transaction or file a return.
Greenstreet Finance is a brokerage, not a lender: the lender on your file underwrites it and makes the decision. The full terms are in Terms, privacy & disclosures.