What Is a CAM Audit? Commercial Lease vs Operating Expenses
A CAM audit compares common area maintenance billed to a tenant with what the commercial lease allows — caps, exclusions, and pro-rata — before you pay.
2026-08-17 · 8 min read
The job is not “summarize the lease”
A CAM audit (common area maintenance audit) checks the expense statement you were billed against the commercial lease that limits what you owe. Caps, exclusions, gross-up, and your pro-rata share live in the contract. The recap total lives in a PDF from the landlord. The audit is the comparison — not a chatbot paraphrase of Article 7.
Tenants, lease administrators, and controllers run this job because CAM quietly inflates: wrong denominator, capital items in operating lines, and cap language nobody re-read after the last amendment.
What a CAM audit actually checks
A serious CAM / NNN audit answers a short list of questions:
- Does the billed category match an allowed operating expense in the lease?
- Did a cap, base year, or exclusion apply — and was it honored?
- Is pro-rata using the share and occupancy rules in the controlling documents?
- Are capital, management-fee, or other excluded items hiding in CAM lines?
- Can you show the clause, the math, and the page if you dispute?
CAM audit vs lease abstraction vs property accounting
Lease abstraction pulls terms into a summary. Useful — and a different job. Property-management and lease-admin suites store abstracts, dates, and AP. They do not finish “does this year’s recap agree with the lease?” Outsourcing a CAM recovery firm can work at portfolio scale; it is a services RFP, not a self-serve credit on one statement.
Jorora Lease Audit AI is the specialized tool for that comparison: extract contractual facts, run deterministic rules, return potential recovery with evidence. AI never invents a cap.
Documents you need
Minimum packet: the commercial lease (plus amendments that change CAM) and the CAM / operating expense statement you were billed. Extra recaps and backup invoices help later. The first pass is contractual vs billed.
How to run one this week
Upload the lease and the statement into Lease Audit AI. 1 credit = 1 completed audit. Failed extractions do not consume credits. You still decide what to dispute — Jorora does not pay the landlord or send the letter.
Run the CAM vs lease check
Upload the commercial lease and this year's recap. Lease Audit AI returns overcharges with clause, math, and page. Two free credits on signup — you can run tools before verifying email.
