How we write our guides
A rental guide must be right before it is read. Here is, plainly, how we work.
Who writes
The guides are signed “La rédaction de Leasy”: they are written by the Leasy team. We invent no byline. When a person gives their name, role and background, they will get an author page.
Leasy is a rental platform and software, not a real estate agency or a law firm. Our guides explain the rules in general terms: they are not a substitute for legal advice suited to your situation.
Where the rules and figures come from
Every rule links to its official source: Légifrance, service-public.gouv.fr, ANIL, INSEE or the Journal officiel. The sources are listed at the bottom of each guide.
The figures (rent reference index, agency fee caps, high-demand areas, rent control areas) come from Leasy's reference data, itself built from official files (INSEE, the Journal officiel, data.gouv.fr, prefectures). They are the same as in our free tools.
Every dated fact (a vote, a decree, an order) is checked against its official source before it is written. A fact we cannot check is not published. When official texts contradict each other, we say so.
Checks and review
Every figure is checked against its source before publication, and the team reviews the guides on an ongoing basis. A guide still in preparation carries the “Draft, under review” banner and stays out of search engines.
When a lawyer or legal professional reviews a guide, their name appears under the title, after “Reviewed by”. Without that line, the guide has not been reviewed by a legal professional.
Updates
Each guide shows “Updated on” and what changed. We keep one page per topic up to date rather than writing a new article for every event: a new rent reference index release, a decree or order in the Journal officiel, a change on 1 January.
Artificial intelligence
Artificial intelligence helps us write the guides. It works from the official sources cited at the bottom of each guide and from Leasy's reference data: a rule without a source or a figure that cannot be checked is not written. Mistakes remain possible: report one and we will fix it.
Correcting a mistake
Found a mistake, an outdated rule or a more recent source? Write to chat@leasy.co. We check, correct and note what changed in “Updated on”.
Every guide leads to a Leasy tool or service: that is our business, and we prefer to say so.