Human-signed AI for accounting · Built inside a CPA firm

Everyone’s shipping AI.
We ship the signature.

AI runs your practice, books and year-ends — set up by real accountants, and signed by you. Not another AI tool you’re left to figure out.

Patent-pending governance layer
no bots · a real CPA walks you through it · your data stays yours
  untitled — trial balance
Cash48,200
Accounts receivable31,540
HST payable12,340
Retained earnings124,500
Drop your trial balance here
or
Try the sample file →
The glass box

It shows its work.
Then you sign.

Every number traced to its source. Every doubt flagged for a human. No black box — you see exactly why, before you put your name on it.

Lejjor · Quality checkDanclair Inc. · FY2024 · #7c1d09f4
Cash48,200
Retained earnings124,500!
Ties to prior-year audited financials. Rolled forward and re-traced to the source schedule.
→ 2024 FS · line 3200confidence 0.98PPaige
HST payable12,340!
Rate basis unclear across two remittance periods — I couldn’t confirm this alone. Flagged for your review.
confidence 0.61MMilton · needs you
Net income61,940
gov #7c1d09f4 · 4 lines · 3 traced · 1 to you[ PASS · pending signature ]
signed · B. — Insight Accounting · CPA, CA, LPA
SIGNED
Built around AI, not bolted onto it

They added AI to accounting software.
We rebuilt it around AI.

Most software was built for people to operate — and later taught to use AI. Lejjors was built from the ground up for AI agents to prepare the work, with professionals controlling, reviewing and signing every decision.

SIGNED a human
FLAGGED every doubt
TRACED to source
Patent-pending trust architecture
The position

Built around AI.
Bound by your standards.

AI-native technology with CPA-native accountability. The agents can carry the work — but controls, evidence and human authority sit in every step, and nothing is final until you sign.

AI-native Built inside a CPA firm Human-signed
Your Insight team at the reception desk — with Paige, Milton & Lejjor on the screen beside them.
[ office photo goes here ]
PML
The firm that built this

Real accountants.
Real AI partners.

Lejjors was built inside a working Canadian CPA firm — by the people who actually sign the files. Paige, Milton and Lejjor don’t replace the team. They work beside it, and hand every judgment call back to a human.

Meet the three partners →
The problem nobody signed off on

There’s already AI in your firm.
Nobody signed off on it.

Your staff are pasting client numbers into chatbots right now. It’s fast, it’s invisible, and when it’s wrong, your name is still on the file. That’s Shadow AI — and it’s the real risk.

91%

of firms have no written AI policy at all

1 in 3

staff already use ungoverned AI on client work

100%

of the liability still lands on the signing CPA

What’s your firm’s Shadow AI score? →
The honest one

AI that says “I don’t know.”

The confident answer is the dangerous one. Most AI would rather bluff than admit a gap — ours raises its hand, flags its doubt in plain language, and hands you the gap instead of a guess. That’s the whole point of a reviewer you can trust.

Build vs. buy

Don’t assemble chatbots. Deploy a system you can sign for.

Wiring ChatGPT, Claude and a stack of plugins together isn’t infrastructure — it’s a liability you maintain yourself.

The DIY stack

A drawer full of chatbots

ChatGPTClaudeZapierSheetsemail
  • × Black box — an answer appears, the trail ends
  • × No audit trail — a chat screenshot isn’t evidence
  • × The liability still lands on the signing CPA
  • × Integration tax — weeks to wire, forever to maintain
  • × Every seam is yours when it breaks
— so who signs this?
vs.
One governed stack

Lejjors

PagesBooksBinder
  • Glass box — every output shows its sources
  • System of record — the decision chain is logged
  • Human-signed — the review step is built in
  • Integration tax already paid — you rent the result
  • One accountable stack — a single owner of the outcome
you do — with the full working underneath
Meet the firm

Three partners. One stack.

Each stage of the work has its own AI partner — and each one shows its working, colour-coded, so you always know who did what.

P

Paige

Pages · the front desk

Runs the practice — clients, onboarding, deadlines, the CRM. Keeps the firm moving so nothing slips.

layer · Pages (CRM)
M

Milton

Books · the bookkeeper

Keeps the books clean all year — categorizes, reconciles, and flags what he isn’t sure about instead of guessing.

layer · Books (bookkeeping)
L

Lejjor

Binder · the file

Builds the working-paper binder for year-ends — traces every figure to source and assembles it for you to sign.

layer · Binder (working papers)
How it works

Not a tool. A firm you can staff overnight.

Lejjors mirrors the seats of a real firm — front desk, bookkeeping, file prep — and fills them with AI that shows its work. You keep the one seat that can’t be automated: the signature.

Your firm
+
Lejjors
=
Your firm, multiplied.
Lejjors · your AI firm · governed
You
the partner who signs
govern · review · sign
P
Paige
Front desk · Pages — sources every figure
M
Milton
Bookkeeper · Books — flags what he’s unsure of
L
Lejjor
File prep · Binder — assembles, holds it for you
the file moves up to you — traced, flagged, then signed
Service, delivered as software

You’re not on your own.

Self-serve AI drops a tool in your lap and wishes you luck. Lejjors comes with people. Real accountants set it up around how your firm actually works, walk your team through it, and stay a call away. AI does the work — humans stand behind it, and beside you.

  • A live demo + design session — set up around your firm, not a generic template.
  • Real onboarding by real accountants — set up with you, not dropped on you.
  • A named team, not a ticket queue — someone who knows your firm.
  • A real CPA on the other end — not a bot, when it actually matters.
The field guide · free

Run a free QC on a real file.

Drop a trial balance or a set of financials. Lejjor runs a governed quality check — and shows you exactly what it found, traced to source. No signup, no sales call.

  • Casts, cross-casts and prior-year continuity
  • Every figure traced to its source document
  • Doubts flagged for a human — not hidden
  • A governance receipt you can hand to a reviewer
Run a free QC →
Drop a file to start

PDF, Excel or CSV · stays in your browser

Run a free QC →
Your name goes on file

Not “trust the AI.” Trust the CPA who signed it.

Every deliverable carries a human signature and the full working underneath it — traceable, defensible, and yours. The AI never files alone.

SIGNED BY A CPA
From the firm

The governance desk.

Read the blog →
Trust, by design

Your file is yours.

The whole point of a glass box is that nothing is trapped in it. Your data goes in, stays yours, and walks out whenever you want.

Take it and leave

Every engagement exports as a signed, self-contained file, and your underlying numbers export in a form you can open — not a proprietary blob. Cancel and nothing evaporates. No hostage architecture.

Never the training set

Your client data is never used to train models. It stays isolated to your firm — and it can run against your own database, so sensitive files needn’t leave the building to be worked on.

Recorded & recoverable

Encryption in transit and at rest, access controls, and an immutable log of who did what — plus backups, so the record survives. SOC 2 and formal certifications are on the roadmap.

Founding Firms · limited

Bring governed AI into your firm — and sign your name to it.

We’re taking a small group of founding firms as design partners. You shape the product; we make your firm the proof.

built by a practising Canadian CPA · your data stays yours · no black box