DERHY AI

Claude as the notary’s structured interview partner

We built Derhy AI as a domain-specific AI assistant powered by Anthropic’s Claude. The system does not generate legal text, does not make legal decisions, and does not replace the notary. It handles the structured interview — the routine data collection that consumes most of the notary’s time — so the human expert can focus on legal strategy and client relationships.

Claude conducts structured interviews using a six-tool architecture designed specifically for notarial workflows. It asks the right questions in the right order, extracts structured data from conversational responses, proposes multiple-choice options for closed questions, and tracks completion percentage in real time. When a notary types “The client is Jean Dupont, born January 15, 1960, married” — Claude extracts three fields simultaneously, confirms confidence levels, and moves to the next relevant question.

The system detects two interview modes automatically. For live interviews, Claude asks one question at a time with clickable choice buttons. When a notary uploads existing notes from a client meeting — a Word document, a PDF, handwritten notes — Claude switches to bulk extraction mode, pulling every available data point in one pass and then asking only about the gaps.

Every legal recommendation includes numbered citations to the Civil Code of Quebec, the Loi sur le notariat, and applicable regulations — with direct links to legisquebec.gouv.qc.ca. The notary sees exactly which article supports each suggestion. If the AI’s recommendation differs from the firm’s template, it flags the discrepancy: “The template contains X, but Article Y of the C.c.Q. states Z. Please validate with Me Derhy.” The notary decides. Always.

Before any document can be generated, a legal review tool validates the entire dossier — checking for missing required fields, legal inconsistencies (a sole beneficiary cannot also be the trustee), cross-act conflicts (mismatched addresses between a will and a mandate), and proactive warnings specific to each act type. Blockers prevent generation. Warnings are advisory. The notary reviews everything before proceeding.

The platform handles family-level dossier management. A couple planning their estate creates one dossier with multiple personas and multiple acts. Claude maintains consistency across all of them — flagging if the address on the wife’s mandate differs from the husband’s will, or if the same person is named as both executor and sole beneficiary across related documents.

Document generation uses the firm’s existing Para-Maître templates. Claude fills them — it does not write them. The legal language in the final document is identical to what the firm has always used. The AI’s job ends at data collection and validation. The notary’s signature is what makes it law.

Security and compliance were non-negotiable. Notarial documents contain some of the most sensitive personal information that exists — family composition, assets, medical wishes, estate plans. The Chambre des notaires du Québec sets strict requirements for how this data must be handled. We built the entire platform on AWS infrastructure in the ca-central-1 (Montreal) region to ensure full Quebec data sovereignty under Law 25 (LPRPSP). All data at rest is encrypted with AES-256-GCM. All data in transit uses TLS 1.2+. Authentication runs through Auth0 with multi-factor enforcement and role-based access control — the notaire principal sees all dossiers, individual notaries see only their own. Every action is logged in an immutable audit trail. The platform tracks compliance against SOC 2 Type II, GDPR, CCPA, and Quebec’s Law 25 — with a built-in compliance dashboard that shows the firm’s current posture across all frameworks in real time. File uploads are validated at the byte level to prevent injection attacks. This is not security theatre. When you are handling documents that determine who inherits someone’s estate or who makes medical decisions if they become incapacitated, security is the foundation everything else depends on.