What happens when you email
us your invoices.
A long-form walk-through of a LEGERIS engagement — from the moment your invoices land in our intake to the moment you receive the forensic report. Three acts: Ingest. Verify. Deliver.
ACT I
Ingest.
The invoices arrive. We make them legible.
A client engagement starts with an email. Invoices land in our intake — PDFs, scans, image-only documents. Some are clean digital exports. Some are photographs of fax-machine outputs. We treat both the same way: every page gets routed through a forensic-grade extraction layer that pulls the header, the line items, the totals, the dates, and the supporting metadata into a structured schema.
What separates this stage from a generic OCR tool is the geometry. We do not just read the text — we capture where on the page each field lives. Bounding boxes. Page anchors. Field provenance. Every value carries a visible coordinate so that later, when a finding cites “the rate on line 6, total column,” that citation is a real anchor pointing at a real position on a real document.
The intake stage also classifies. Each document is tagged by shape — a full invoice page, a header-only fragment, a body-only fragment, a summary page from a larger document. The classification matters because audit logic differs by shape. A partial document does not get treated as a full one. Missing fields do not get treated as zero values. The forensic posture starts here.
ACT II
Verify.
Every line cross-checked against contractual truth.
With the document structured and the contract ingested into our knowledge base, the audit proper begins. The hybrid intelligence engine runs two passes simultaneously. One pass is interpretive — language models read the relevant clauses, extract the negotiated terms, and propose potential discrepancies between the invoice and the contract. The other pass is deterministic — purpose-built engines recompute every number, check every arithmetic identity, validate every total against the sum of its parts.
The two passes converge. The language-model pass proposes; the deterministic engines decide. A finding is not surfaced because the model thinks something looks off. A finding is surfaced because the deterministic engine has the math, the contract reference, and the visible evidence in alignment. Anything the model proposes that fails deterministic verification is dropped. Anything the deterministic engine catches independently is added. The result is a set of findings that survives both interpretive and arithmetic scrutiny.
Each surviving finding carries its evidence as it travels through the pipeline. The exact line. The exact value. The exact contract clause. The exact calculation. By the time the finding reaches the report, nothing about it is opaque. The auditor reviewing it sees the proof. The finance team deciding whether to escalate sees the proof. There is no black box in the chain between invoice and finding.
ACT III
Deliver.
A forensic report suite. Built for review and action.
Each audited invoice can be opened as its own forensic PDF: audit reference and verdict, a plain-English summary, the original source page with finding anchors, severity-ranked findings, the calculation beneath every numerical claim, recommended action, and the audit hash that identifies the immutable source snapshot.
At engagement level, the Report Center turns the same source truth into decision-ready deliverables. The executive-summary PDF gives leadership the population position and highest-priority escalations. The complete CSV/XLSX findings register gives finance and audit teams a working queue with evidence anchors, dispositions, and provenance. Every generated artifact is archived against its exact audit coverage, watermark, timestamp, and integrity hash.
For up to 30 invoices, the full combined PDF adds every selected invoice section to the engagement cover, dashboard, and index. Larger populations keep the executive summary and register across the complete engagement, with a chosen subset available when detailed combined documentation is needed.
That is what a LEGERIS audit looks like.
The same forensic posture, on every invoice we audit. Predictable. Reproducible. Defensible.
Engagement-based pricing. Reply within 24 hours.