13 Detection Rules: What CAMAudit Checks in Your CAM Statement
Every CAM reconciliation statement runs through 13 forensic checks. Errors appear in roughly 30% of commercial reconciliation statements reviewed, according to data from tenant-side auditors. Six rules perform deterministic math calculations against your lease terms: they compute exact dollar overcharges for management fees, pro-rata share, gross-up, CAM cap, base year, and estimated payment true-up. Seven rules use AI classification to identify charges that violate lease exclusions or exceed permitted categories. Together they catch the overcharge patterns that most tenants miss entirely.
Math-Based Rules
Five of these rules calculate exact dollar overcharges using your lease terms and reconciliation figures. Results are deterministic: given the same inputs, the calculation always produces the same answer. The sixth, Gross-Up Violation, is advisory: CAMAudit identifies whether gross-up was applied incorrectly, but quantifying the dollar impact requires the landlord's internal cost allocation data.
Management Fee Overcharge
Calculates the maximum management fee your lease permits and flags the exact dollar overage when the actual fee exceeds that cap.
Pro-Rata Share Error
Verifies your pro-rata share fraction against your lease and calculates overcharges caused by an incorrect denominator or numerator.
Gross-Up Violation
Checks whether required gross-up adjustments were applied to variable expenses when building occupancy fell below your lease threshold.
CAM Cap Violation
Compares year-over-year CAM charges against your lease cap and calculates the exact dollar amount charged above the permitted increase.
Base Year Error
Detects understated base year expenses that inflate every subsequent CAM reconciliation charge for the life of your lease.
Estimated Payment True-Up Error
Verifies the reconciliation true-up matches expected amount after subtracting estimated payments already made.
That covers the math. Here is where classification comes in.
Classification Rules
These seven rules use AI to classify expense types and compare them against your lease exclusions and permitted categories. Findings identify charges that violate your lease terms and require documentation review to confirm.
Gross Lease Charges
Flags CAM charges billed to tenants whose gross lease already covers those costs in their all-in rent.
Excluded Service Charges
Identifies expense categories your lease explicitly prohibits from CAM pass-through, such as capital costs, executive compensation, and bad debt reserves.
Insurance Overcharge
Classifies insurance line items and flags specialty or executive coverage types that are not eligible for CAM pass-through under your lease.
Tax Overallocation
Checks whether real estate taxes were allocated to the correct parcel and flags special assessments not authorized by your lease.
Utility Overcharge
Detects utility costs for individually-metered tenant spaces or non-common areas that should not appear in the shared CAM pool.
Common Area Misclassification
Uses AI classification to identify capital improvements, leasing costs, and construction work disguised as routine maintenance in CAM.
Controllable Expense Cap Violation
Identifies controllable expenses per your lease definition and flags both reclassification tricks and annual increase overages.
Frequently asked questions
Next Best Step
Use the rules as proof, then move back into the audit flow
Detection rules are supporting evidence pages. The next step is to see how findings appear in the report, then start the audit.
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Upload your lease and reconciliation to run all 13 checks.
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