It’s CAM and opex reconciliation season. The time of year when lease administrators are deep in spreadsheets, reviewing backup, and trying to confirm the charges are consistent with the lease.
One area that causes confusion is management fees. They look simple and are often represented as just a percentage; however, they are also one of the most misunderstood and easiest places for errors to hide. Lease language and methodology are important, and small inconsistencies add up to real dollars over time.
Start with the Lease, Not the Math
Before touching a calculator, go back to the lease. Management fee language is rarely consistent, and it often carries more nuance than it appears at first glance.
A lease may reference a percentage of operating expenses, a fee tied to revenue, a fixed administrative charge, or even multiple layers of fees, such as property management and asset management. Some include caps, others do not. Some define the calculation base clearly; others leave room for interpretation.
That’s where the risk sits.
When a lease defines management fees based on “revenue,” that single word can carry multiple meanings. Is it gross revenue or net revenue? Is it total building revenue in a multi-tenant property, or only the tenant’s rent? Those distinctions are rarely visible in a reconciliation summary, but they are critical in the lease.
The same applies to operating expense-based fees. Many leases exclude specific categories such as taxes, insurance, capital expenditures, amortization, tenant improvements, or leasing commissions. If those exclusions are not properly removed from the calculation base, the management fee is already overstated before the percentage is even applied.
It is entirely possible for the math to look correct on the surface while still not aligning with the intent of the lease.
Lease Structure Impacts on Methodology
It is critical to determine whether the lease is a base-year lease or a net lease.
In a base year lease, tenants are responsible only for increases in operating expenses over a defined base year. That means the analysis is not about the total expense, but instead about the change. Management fees are not automatically fully recoverable each year, and their treatment must be consistent between the base year and subsequent periods.
In a net lease, tenants typically pay their proportionate share of operating expenses each year. The question becomes whether the management fee meets the lease definition and is calculated correctly.
This distinction matters because it changes how errors show up. In base-year leases, issues often arise from inconsistencies between periods. In net leases, they tend to come from over-inclusion or incorrect calculation bases.
I have seen management fees calculated on “gross building revenue” per the lease, but use estimated operating expense billings as part of the revenue instead of actual allowable operating expenses to arrive at that number. Depending on how those estimates are trued up, the result can swing in the tenant’s favor or against it, but either way, the methodology is wrong.
The Gross-Up Trap
Gross-up provisions add another layer of complexity to base year leases, especially when combined with management fees. Operating expenses are often grossed up to reflect full occupancy, which is intended to normalize costs and create comparability. Where things start to get convoluted is how management fees are calculated from those adjusted numbers.
In some cases, operating expenses are first grossed up to a stabilized level, and the management fee is then calculated on those grossed-up expenses rather than actual costs. This is where lease language and interpretation matter. It becomes even more complicated when the management fee itself is then also grossed up. The expenses are adjusted through gross-up, a fee is calculated on those adjusted amounts, and that fee is then increased again through the same gross-up methodology. In effect, the same adjustment is being applied more than once to the same economic activity.
Gross-ups are intended to normalize variable expenses so tenants are not impacted by vacancy, not to increase fixed or semi-fixed costs multiple times. When a management fee is calculated on already grossed-up expenses and then grossed up again, the result is an inflated cost that likely does not align with the lease or the intent of the provision. The percentage may be correct, and the math may even appear internally consistent, but the methodology is not.
This type of issue is rarely obvious on the surface. Instead, it often appears as a management fee that seems higher than expected, gross-up applied broadly without clarity around what is included, or a lack of transparency in how the calculation was built. The only way to identify it is to break the calculation apart and follow the order of operations step by step. This is exactly the kind of issue that calls for a Lease Police mindset.
Don’t Audit in the Dark: Request the Methodology and Backup
One of the most important steps in reviewing management fees is also one of the most overlooked. Request the calculations and methodology. Do not rely on summary numbers alone. Ask for the management fee calculation worksheet, the defined expense base, and the detailed backup supporting it. Understand what was included, what was excluded, and how the numbers were built.
If gross-up is involved, ask how it was applied. If multiple management-related charges appear, ask how they differ. If a cap exists, confirm how it was enforced. If you cannot clearly walk through the calculation, that is a signal to slow down and take a closer look. This can take several requests to the landlord to peel back the layers. Lease administrators are not just reviewing numbers; they are validating the methodology and comparing it against the lease terms.
How AI Can Support the Review Process (Using Enterprise LLMs)
During reconciliation season, volume is high and time is limited. This is where AI can be a valuable tool, particularly when using enterprise-grade large language models (LLMs) designed to protect sensitive data.
Unlike public tools, enterprise LLM environments are typically configured with:
• Data privacy controls
• No training on your company’s inputs
• Secure document handling
• Integration with internal systems
That makes them more appropriate for reviewing leases, reconciliations, and supporting financial data within a controlled environment.
In practice, AI can help lease administrators quickly extract key lease provisions, identify exclusions and caps, compare base-year and current-year expense groupings, and flag inconsistencies in how calculations are applied.
Prompts will vary from lease to lease, but you might use prompts like:
“Review the lease and amendments and summarize management fee provisions, including percentage, caps, exclusions, and calculation base. Provide relevant lease sections.”
“Now review and analyze this CAM reconciliation and prior year CAM reconciliations, and make observations about how the management fee was calculated. Identify areas that need more investigation.”
“Compare the base year and current year expense schedules and identify inconsistencies in categories, gross-up methodology, or management fee treatment.”
“Review this calculation and determine whether management fees are being calculated on grossed-up expenses and whether those fees are also included in the gross-up pool.”
These tools can help reduce the time required to identify issues and prepare audit questions.
But they do not replace judgment. Lease interpretation still requires experience, context, and an understanding of how contract language translates into financial outcomes. Always read the relevant lease sections and validate. Always confirm your company’s policies before uploading documents or any company information into an LLM.
Management fees are often treated as routine. But they are anything but routine.
What management fee issues have you come across, or how are you using AI to support your reconciliation reviews?