Read → Extract Terms → Structure → Flag Gaps → Review

Lease Abstraction Agent

Reads a lease document and pulls the terms that drive billing and obligations - base rent, escalations, option windows, expense responsibilities - into structured fields your team can review against the source.

The Problem

A 40-page lease, retyped by hand. One wrong number bills wrong.

Key lease terms are manually retyped. Data entry errors cause billing mistakes and missed obligations.

What Changes

Key terms extracted. Your team reviews, doesn’t retype.

Reads the lease document and extracts key terms - rent, escalations, options, expense responsibilities - into structured fields. Your team reviews the extraction instead of retyping a 40-page document.

Humans stay in control: Your lease admin reviews every extracted field against the document. The agent does the reading and the structuring. It produces a draft abstract, your team confirms it.

HOW THE AGENT WORKS

TRIGGERLLMAPIDECISIONACTIONWAIT

TRIGGERLease UploadedNew lease PDF added to the system

LLMRead DocumentLLM parses the full lease text

LLMExtract TermsPull rent, dates, options, expenses

APIPull Unit RecordGet the matching unit/tenant in PMS

DECISIONAll Fields Found?

LLMFlag GapsMark terms not found or ambiguous

ACTIONDraft AbstractWrite structured fields for review

ACTIONFlag for ReviewSend abstract to lease admin

The agent doesn't interpret the lease or make a legal call. It pulls the terms into structured fields. Your team reviews the extraction against the document. The agent removes the retyping, not the review.

HOW TO BUILD IT

Three levels of depth. Pick the one that matches where you are.

For the ops person who needs to understand what's involved and brief their team.

Your LeasesPDF documents

The AgentWorkflow engine + LLM

Your PMSUnits, tenants, lease data

WHAT YOUR TEAM PROVIDES ONCE

Lease documents - the PDFs the agent reads
Your abstract template - the exact fields you track
Term definitions - what counts as an escalation, option, pass-through
Unit / tenant records - so abstracts attach to the right lease
Sample abstracts - a few correctly built ones as a guide

What happens day-to-day: A lease gets signed and uploaded. The agent reads it and drafts the abstract - rent, escalations, options, expense terms - into your fields. Your lease admin reviews against the document instead of retyping forty pages, and flags anything the agent marked uncertain.

For the IT person or technical lead who needs to scope the integration.

INQUIRY SOURCES

Lease PDF upload

Document store

Email attachment

WORKFLOW ENGINE (N8N)

Trigger

LLM - Read full document

LLM - Extract terms

PMS API - Match unit

Branch - gaps?

Write structured abstract

Flag for review

CONNECTS TO

PMS (Yardi / MRI / AppFolio)Read: unit/tenant. Write: lease abstract fields

Document store (Box / SharePoint)Read: lease PDFs

Vision / OCR modelRead scanned or image-based leases

Notifications (email / Slack)Send the draft abstract to lease admin

WITHOUT PMS API

Agent outputs the abstract as a structured table for your admin to paste into the PMS. No auto-attach, but the extraction work disappears.

WITH PMS API

Agent reads the lease and writes structured fields straight to the unit record. Abstracts attach automatically. Best experience.

For the person who wants to build this agent step by step. Each node below maps to an n8n workflow node.

TRIGGERNode 1

Trigger - Lease Uploaded

Watch a document folder or upload webhook for new lease PDFs.

Output: { lease_pdf, unit_ref, uploaded_by, uploaded_at }

LLMNode 2

LLM - Extract Lease Terms

Vision-capable model reads the full lease and extracts the abstract fields.

Output: { base_rent, term_start, term_end, escalations[], options[], expense_terms, gaps[] }

You read a commercial or residential lease and build a structured abstract.

Extract:
- base_rent: amount and frequency
- term_start, term_end: ISO dates
- escalations: [{ date_or_year, type, amount }]
- options: [{ type, window, notice_required }]   // renewal, termination, expansion
- expense_terms: who pays CAM, taxes, insurance, utilities
- gaps: list any field you could NOT find or that was ambiguous

Quote the lease section for each extracted term where possible. Never guess a number. If unsure, put the field in gaps.
Respond ONLY with valid JSON.

INPUT

[Lease PDF: base rent $4,200/mo, 3% annual escalation, 5-year term starting 2026-07-01, one 5-year renewal with 180 days notice, tenant pays own utilities, landlord pays taxes/insurance]

OUTPUT

{
  "base_rent": "4200 monthly",
  "term_start": "2026-07-01",
  "term_end": "2031-06-30",
  "escalations": [{ "date_or_year": "annual", "type": "fixed_percent", "amount": "3%" }],
  "options": [{ "type": "renewal", "window": "5 years", "notice_required": "180 days" }],
  "expense_terms": "Tenant: utilities. Landlord: taxes, insurance.",
  "gaps": ["CAM responsibility not specified"]
}

APINode 3

HTTP Request - Match Unit Record

Find the unit/tenant in the PMS so the abstract attaches to the right lease.

Output: { unit_id, tenant_id, existing_lease_flag }

DECISIONNode 4

Condition - Gaps Present?

IF gaps[] is empty → draft a clean abstract. ELSE → draft and highlight the missing terms for the admin.

Output: Branch: CLEAN (draft) or GAPS (draft + highlight)

ACTIONNode 5

Write Structured Abstract

Write the extracted fields to the lease record (or a review table), with section references attached.

Output: Draft abstract saved against the unit. Status: "Pending review".

ACTIONNode 6

Flag for Review

Notify the lease admin with the draft and any highlighted gaps for confirmation.

Output: Admin notified, abstract ready to confirm against the document.

MVP vs Advanced — Where To Start

MVP — START HERE

Folder-watch trigger
Text-based lease parsing
Manual unit match
Core fields only (rent, term)
Abstract to a sheet
Admin review by email

ADVANCED — ADD LATER

Full Video Walkthrough Coming Soon

From a 40-page lease to structured fields - step by step.

Everything on this page is free to learn.

When you're ready to build — do it yourself or bring us in.

Book a call to scope this

OTHER AGENTS IN LEASING & MARKETING

Lease-to-Billing Validator

Flags mismatches between lease terms and system billing before invoices go out

Critical Date Guardian Agent

Watches every renewal, option, and notice deadline across the portfolio

Frequently asked questions

Lease Abstraction Agent is an AI agent that extracts key terms from lease documents into structured fields.

A 40-page lease, retyped by hand. One wrong number bills wrong. The Lease Abstraction Agent addresses this — it extracts key terms from lease documents into structured fields.

No — your team stays in control. Your lease admin reviews every extracted field against the document. The agent does the reading and the structuring. It produces a draft abstract, your team confirms it.

This is 2 of 3 agents in Lease Administration. → · Explore all 10 departments →