The 10 elements every effective CAM dispute letter draft needs: notice compliance, calculations, documentation requests, and a clear resolution ask.
TL;DR: An effective CAM dispute letter draft needs 10 elements: proper notice identification, a lease section citation, an overcharge summary table, line-item calculations, supporting exhibits, an audit rights invocation, the specific period under dispute, a clear resolution ask, a 30-day response deadline, and delivery by the method the lease requires.
Run the audit before you decide whether this applies to your lease.
Find My OverchargesFind overcharges in your CAM reconciliation. Most audits complete in under 5 minutes.
Find My OverchargesSee a sample report first“CAMAudit generates the calculation that makes the dispute letter draft credible. After running a reconciliation through CAMAudit, tenants have the specific dollar figure, the lease provision violated, and the corrected calculation all in one place. That is the difference between a letter the landlord engages with and one that gets filed away.”
A CAM dispute letter draft written without a checklist tends to be either too aggressive (threatening legal action before establishing the numbers) or too vague (stating a general belief in overcharging without a specific dollar claim). Both versions fail. The landlord needs enough information to verify your claim or dispute it specifically, and you need a letter that creates a paper trail if the dispute escalates.
Here are the 10 elements that matter.
The opening lines of the letter establish jurisdiction over the dispute. Include:
This seems like boilerplate, but missing or inaccurate identifying information can create procedural questions later. If the lease was assigned and the named tenant is a predecessor entity, use the current tenant name and note the assignment.
State explicitly that this letter constitutes formal notice of dispute under a specific lease section. Something like:
"Pursuant to Section 8.3(c) of the Lease Agreement dated March 1, 2019, Tenant hereby provides formal written notice of dispute of the 2024 Annual CAM Reconciliation Statement received on January 15, 2025."
This sentence does several things. It starts your dispute window clock (or demonstrates it is already running). It establishes the correct contractual mechanism. And it signals to the landlord's property management team that this letter needs to go to their legal or accounting department, not into the general correspondence file.
The ABA Real Property section has documented that tenant demands which cite specific lease provisions recover at substantially higher rates than those that do not. The mechanism is simple: a landlord who receives a demand citing Section 8.3(c) has to look up Section 8.3(c) to respond. A landlord who receives a general complaint letter can respond with a general denial.
Before the detailed calculations, include a summary table. This lets the reader see the total claim at a glance:
| Line Item | Year | Billed | Should Be | Overcharge |
|---|---|---|---|---|
| Management Fee | 2024 | $27,200 | $17,000 | $10,200 |
| Lobby Renovation (CapEx) | 2024 | $12,500 | $0 | $12,500 |
| Pro-Rata Share Error | 2024 | $8,400 | $7,100 | $1,300 |
| Total | $24,000 |
A table like this accomplishes two things. It shows that your claim is specific and calculated, not estimated. And it gives the landlord's accounting team a clear target for their response, they have to either agree with each line, dispute the lease interpretation, or produce documentation showing different numbers.
For each disputed item in the summary table, include a separate calculation section that shows your work. The minimum for each item:
The lease provision that controls this charge. Quote the relevant sentence, not just the section number. If the management fee cap is "not to exceed four percent (4%) of total operating expenses," quote that language.
What the reconciliation statement shows. The actual line-item amount from the statement you received.
What the correct calculation produces. Using your lease's definitions, show what the charge should have been.
The difference. State the overcharge in dollars.
This is the part of the letter most tenants skip, and it is also the part that decides whether the landlord takes the dispute seriously. A calculation section that traces from lease language to billed amount to correct amount creates a record that is difficult to ignore and, if litigation becomes necessary, is exhibit-ready.
Attach whatever you have that supports your calculations:
Do not attach everything you have. Attach what is necessary to support the specific claims in your letter. Burying the relevant information in 200 pages of attachments makes your letter harder to process, not more convincing.
Most commercial leases include an audit rights clause that entitles the tenant to inspect the landlord's records supporting the CAM reconciliation. This clause typically requires the tenant to make a written request within a specified period.
Your dispute letter draft should invoke this right explicitly. Cite the section number and request specific records:
Some leases specify that the dispute window does not begin until the landlord provides records that are "reasonably detailed." If yours includes that language, note it. It may give you additional time.
State exactly which reconciliation period your letter covers. If you are disputing multiple years, list them. Note the date you received each reconciliation statement (the dispute clock often starts from receipt, not from the date of the statement).
If you are uncertain whether your dispute window is still open, state the dates and note the applicable lease provision. Do not silently assume you are within the window. If there is any ambiguity, address it in the letter.
This element is missing from most CAM dispute letters. Tenants frequently state the overcharge amount but fail to state specifically what they want the landlord to do about it.
Be explicit:
"Tenant requests that Landlord issue a credit of $24,000 against Tenant's next quarterly CAM estimate payment, together with written confirmation of the corrected calculation methodology for future reconciliation periods."
Or:
"Tenant requests that Landlord remit $24,000 by check within 45 days, together with a corrected reconciliation statement for the 2024 period."
A specific resolution ask gives the landlord something to say yes to. It also frames any counteroffer against your specific request, which helps keep the negotiation grounded in your numbers rather than the landlord's.
Give a specific date, typically 30 days from the letter's delivery date, and state plainly what happens if you do not receive a response. The options depend on your lease:
Keep the tone factual. You are describing a process, not making threats. A statement like "If Tenant does not receive a substantive response by [date], Tenant will proceed with a formal audit pursuant to Section 8.3(d) of the Lease" is appropriate. "If we don't hear from you, we'll sue" is not.
The letter must be sent by whatever method the lease requires. Read the "Notices" clause and follow it precisely. Common requirements:
Keep all delivery receipts. If the lease permits multiple methods, use the most reliable one, typically overnight courier with tracking. The date of delivery is often what starts or stops the clock on landlord response obligations.
Sources: Fielding & Beaton, "An Introduction to Operating Expenses in Commercial Leases," ABA Probate & Property (Dec. 2023); Schorr, "Fraudulent Common Area Overcharges in Commercial Leases," ABA Business Torts Journal (Fall 2008); Tolou Realty Assocs. v. Dolphin Diner Corp., N.Y. App. Term (2025); 735 ILCS 5/9-209
Need a documented overcharge calculation to attach to your letter? Run a free CAM audit at CAMAudit. For the full dispute process from start to finish, read the CAM Dispute Guide.