What should a CAM dispute letter include to be legally effective?

An effective CAM dispute letter must: identify the reconciliation statement being disputed by period and delivery date; cite the specific lease provisions the tenant believes were violated; quantify each claimed discrepancy with a dollar amount; reference the specific GL transactions or calculations that support each claim; state whether the tenant is exercising formal audit rights under the lease or making an informal review request; and state the tenant's position on payment (typically 'paying undisputed amount under protest'). A letter that only says 'we think the charges are too high' won't trigger the landlord's obligation to respond or produce documents.

How long does the landlord have to respond to a CAM dispute letter?

If the letter formally exercises audit rights under the lease, the lease will specify the document production deadline — typically 30–60 days. For informal dispute letters that request explanation or correction without formally triggering audit rights, there's no contractual deadline, though most landlords respond within 30 days as a practical matter. If the landlord doesn't respond to an informal request within 30 days, send the formal audit rights letter — that creates a contractual obligation to respond.

Should I hire a CPA or lease auditor before sending a dispute letter?

It depends on the size of the claimed discrepancy. For discrepancies under $15,000, you can often identify and document the error yourself using the lease and the statement. For larger claims — particularly those involving gross-up methodology, cap carryforward math, or complex denominator exclusions — a CPA or specialized lease auditor will find errors you'll miss and quantify them more precisely. Most lease auditors work on contingency (30–40% of recovery), so there's no upfront cost. The contingency fee is sometimes recoverable under the lease if the landlord's error exceeds a threshold percentage of the billed amount.

Can a dispute letter preserve my audit rights if the window is about to close?

Yes — sending a written exercise of audit rights before the deadline closes preserves your right to conduct the audit, even if you haven't completed your review yet. The letter doesn't need to quantify specific errors to trigger the audit rights mechanism — it needs to state that you are exercising your right to audit the reconciliation statement for the specified period, per the specific lease section. Send it certified mail or email with read receipt so you have proof of delivery before the deadline.

What happens if the landlord rejects my dispute?

If the landlord denies your claims or refuses to provide documentation after receiving a formal audit rights exercise, your next step is formal dispute resolution — typically mediation followed by arbitration or litigation, as specified in your lease's dispute resolution clause. Before escalating, confirm you've followed the lease's procedural requirements: written notice, audit rights window, document request. A dispute that skips required procedural steps can be dismissed on procedural grounds regardless of the merits. Most landlords negotiate rather than arbitrate when the documentation is solid.

CAM Reconciliation Dispute Letter: Template, Key Claims, and Supporting Docs

By Angel Campa·Founder, CapVeriUpdated April 24, 2026

Quick Answer

A CAM reconciliation dispute letter needs to cite the specific lease provision violated, quantify each discrepancy in dollars, and state whether you're making an informal request or formally exercising audit rights. The formal audit rights exercise triggers the landlord's contractual obligation to produce supporting documents within 30–60 days.

Two Types of Dispute Letters

Before drafting anything, decide which type of letter you're sending. They serve different purposes and trigger different obligations.

Informal billing review request: Used when you have a question or a specific concern but want to give the landlord a chance to explain or correct before exercising formal rights. This doesn't trigger the formal audit mechanism. It's faster, preserves the relationship, and often resolves straightforward errors without escalating.

Formal audit rights exercise: Used when you've identified clear discrepancies, the landlord hasn't responded to informal requests, or your audit window is approaching expiration. This triggers the landlord's contractual obligation to produce documents within the lease-specified timeframe. Send this when you're serious about pursuing the dispute.

Most disputes should start with the informal request. If that doesn't produce a satisfactory response within 30 days, send the formal letter.

For context on the full dispute process, see cam charges dispute process.

Informal Request Letter Template

[Tenant Letterhead] [Date]

[Landlord or Property Manager Name] [Address]

Re: CAM Reconciliation Review Request — [Property Name], Suite [X], [Year] Reconciliation

Dear [Name]:

We received your CAM reconciliation statement dated [Statement Date] for the period January 1 – December 31, [Year]. We appreciate the detailed breakdown provided.

Upon review of the statement against the terms of our lease (Section [X]), we've identified the following items we'd like to discuss:

Item 1: [Brief Description] The statement includes $[Amount] described as "[Expense Description]." Under Section [X.X] of our lease, capital improvements are excluded from the recoverable CAM pool. Based on the description, we believe this may be a capital item rather than a maintenance expense. Please provide documentation confirming how this expense was classified and the corresponding invoice.

Item 2: [Brief Description] The pro-rata share applied in the statement is [X%], computed using a denominator of [Y] square feet. Our lease (Section [X.X]) defines the denominator as the total leasable area of the project, excluding the square footage of any anchor tenant with a separately negotiated CAM agreement. The property includes [Anchor Tenant] with [Z] square feet under a direct landlord agreement. Using the adjusted denominator of [Y-Z] square feet, our pro-rata share would be [Corrected %], resulting in a difference of $[Amount].

We're not at this stage formally exercising our audit rights. We'd welcome a call or written response within 30 days addressing these items. If the items can be resolved through clarification or correction, we're happy to process payment of the adjusted amount promptly.

Please direct your response to [contact information].

Sincerely, [Tenant Representative Name] [Title]

Formal Audit Rights Letter Template

[Tenant Letterhead] [Date]

[Landlord or Property Manager Name] [Address]

Re: Exercise of Audit Rights — [Property Name], Suite [X], [Year] CAM Reconciliation Sent via Certified Mail, Return Receipt Requested

Dear [Name]:

Pursuant to Section [X.X] of our Lease Agreement dated [Original Lease Date] for Suite [X] at [Property Name] (the "Lease"), Tenant hereby exercises its right to audit the CAM reconciliation statement for the period January 1 – December 31, [Year] (the "Statement"), delivered on [Statement Delivery Date].

Basis for Audit

Our review of the Statement has identified the following specific concerns:

1. Non-Recoverable Expense Included — $[Amount] The Statement includes $[Amount] described as "[Expense Description]." Section [X.X] of the Lease expressly excludes [capital improvements/depreciation/executive compensation/other] from the CAM pool. This expense, as described, appears to fall within the excluded category.

2. Denominator Error — Estimated Overcharge $[Amount] The Statement applies a pro-rata share of [X%] based on a denominator of [Y SF]. Section [X.X] of the Lease defines the denominator as the total leasable area excluding [anchor tenants/specific exclusions]. The correct denominator is [Z SF], producing a pro-rata share of [Corrected %] and reducing Tenant's CAM obligation by approximately $[Amount].

3. Management Fee Overcharge — $[Amount] The management fee included in the pool is $[Amount], representing [X%] of total operating expenses. Section [X.X] of the Lease caps management fees at [Cap%] of operating expenses. The capped amount is $[Capped Amount], resulting in an overcharge of $[Difference].

Document Request

Pursuant to Section [X.X] of the Lease, Tenant requests production of the following documents within [30/60] days of this notice:

General ledger for [Property Name] for the full reconciliation period (January 1 – December 31, [Year])
All vendor invoices in excess of $[Threshold] included in the CAM pool
Management fee calculation and basis
Gross-up calculation worksheet and the variable/fixed expense categorization used (if gross-up was applied)
CAM cap calculation worksheet, including prior-year controllable CAM and carryforward schedule (if applicable)
Rent roll as of December 31, [Year], with pro-rata share denominator computation

Payment

Tenant will remit payment of $[Undisputed Amount] on or before [Payment Due Date], representing the undisputed portion of the true-up amount. This payment is made without prejudice to Tenant's right to recover the disputed amounts identified above. Tenant expressly reserves all rights under the Lease.

Notice

All communications regarding this audit should be directed to: [Contact Name] [Title] [Address / Email / Phone]

Sincerely, [Tenant Representative Name] [Title]

cc: [Tenant's Attorney, if applicable]

Key Claims to Include

Capital Expenditure Misclassification

The most common CAM dispute ground. Common indicators in the statement:

Single large expense (over $20,000) described as "replacement" rather than "repair"
HVAC, roof, elevator, parking lot described in a way that suggests full replacement vs. maintenance
New systems or equipment not referenced in prior years

How to quantify: The full excluded amount, or the amortized amount if the lease permits amortized recovery.

Denominator Errors

Second most common. Always check whether:

Anchor tenant square footage was excluded per the lease
Vacant space was included (some leases exclude vacant space from the denominator during certain periods)
A lease modification changed your denominator since the prior year

See pro-rata share calculation for the methodology.

Management Fee in Excess of Lease Cap

Calculate: management fee ÷ total operating expenses (or gross revenues, per your lease). If it's over the cap percentage, the excess is excluded. Straightforward to quantify.

Gross-Up Applied to Fixed Expenses

Pull the lease's gross-up clause and identify which expenses are specified as "variable" or "occupancy-dependent." Fixed-price contracts (flat-fee janitorial, fixed annual security contract, management fee) shouldn't be grossed up regardless of occupancy levels. See cam gross-up calculation guide.

Insurance for Non-Property Expenses

Landlord's portfolio-level insurance allocated to multiple properties may include coverage that doesn't specifically apply to your leased premises. Request the actual insurance declarations page to verify the premium amount matches what's billed.

Supporting Documents to Attach

When possible, attach evidence directly to your dispute letter:

Document	Purpose
Prior-year statement (for denominator comparison)	Shows the denominator changed unexpectedly
Lease excerpt (relevant section)	Pins the dispute to specific contract language
Your own calculation worksheet	Shows the math supporting your claimed overcharge
Publicly available invoices (e.g., county tax records)	Cross-checks real estate tax billing

Don't attach documents you obtained informally from property management — attach only what you have a legal right to possess.

After Sending the Letter

Track the response deadline on your calendar. If the landlord doesn't respond within the lease-specified period:

Send a written follow-up citing the missed deadline
Confirm your audit rights remain open (late production often tolls the window)
If still no response within 15 additional days, consult your attorney about enforcement options

For the full resolution timeline, see cam reconciliation timeline guide.

For context on how the landlord views the dispute from their side, see tenant audit rights landlord — understanding their position helps you anticipate responses and structure your negotiation.

When the landlord produces documents, use the CAM expense reconciliation process to work through the figures and quantify your final claim.