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Recovery of past CAM overcharges depends on your specific lease terms, including any audit rights deadlines or ‘binding and conclusive’ provisions, and on applicable state law.

State statute of limitations periods apply to written contracts and range from 3 to 10 years. Your actual lookback window may be shorter based on your lease.

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  1. Home
  2. /Glossary
  3. /Umbrella Insurance

Umbrella Insurance

Last updated: April 2026

An additional liability insurance policy that provides coverage above and beyond the limits of the building's primary general liability and property insurance policies. Landlords often pass through umbrella insurance premiums as part of CAM or insurance charges.

Technical Definition

Umbrella insurance (also called excess liability insurance) sits above the primary commercial general liability (CGL) policy and provides additional coverage once the underlying policy limits are exhausted. In a commercial building context, the landlord purchases umbrella coverage to protect against catastrophic claims. The premium is typically passed through to tenants as part of the insurance component of operating expenses. The appropriateness of the coverage level and the allocation method are both auditable.

How This Gets Abused

A landlord increases umbrella coverage from $5M to $25M after acquiring additional properties, then allocates the entire premium increase across tenants of the original building. Tenants at the original property pay for coverage that protects the landlord's expanded portfolio.

Tenant Protection Tip

Request a copy of the umbrella policy declarations page to verify the coverage amount and that it covers only your building, not the landlord's entire portfolio. If the landlord owns multiple properties, the umbrella premium should be allocated among all properties, not charged entirely to one.

Related Terms

Insurance ReconciliationOperating Expenses
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Related Resources

Detection RuleInsurance Overcharge DetectionToolFree CAM Scan

Need to extract lease terms before your audit?

A CAM audit is only as accurate as your lease data. lextract.io extracts 126 structured fields from any commercial lease PDF: CAM definitions, pro-rata share, caps, base year, and audit rights. So you have the exact terms your landlord is supposed to follow.

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This page provides general educational information. It is not legal advice and may not reflect the most current law in your state. Consult a licensed attorney for advice specific to your situation.

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