Use dotted terms for definitions. You can also browse the glossary.
Before you decide
- An upper liability layer is not extra building coverage.
- Match attachment to the actual primary limits.
- Business and entity-owned exposures require express review.
Prepare the underlying evidence
Collect primary policies, liability limits, declarations, entities, locations and operations. Liberty Mutual’s personal-product explanation describes additional liability above underlying cover and flags business limitations. Do not infer commercial rental acceptance from that description.
Ask which form is proposed, which underlying insurers are accepted and which activities are excluded. Record insured names and effective dates across the complete structure.
Run an attachment review
- Required primary limits and accepted underlying schedule?
- Exhaustion requirements and owner-funded gap if limits do not match?
- Defense inside or outside limits, and control of counsel?
- Occurrence and aggregate treatment across properties?
- Retentions, exclusions, notice and acquisition reporting?
Keep the structure current
After an acquisition or ownership change, obtain confirmation for both primary and upper layers. A primary endorsement should not be assumed to amend the umbrella automatically.
Select capacity after discussing severity, contracts, accepted exposures and retained cash. No asset-multiple rule or typical price substitutes for the actual terms.
Sources & scope
- Liberty Mutual: What umbrella insurance covers
September 18, 2026. Personal-product explanation; business and entity-owned rentals need express acceptance. No price estimates adopted.
- NAIC: Small business insurance
General property, liability and package-policy definitions. Product eligibility and exclusions require the actual form.
Sources checked October 24, 2026. General descriptions do not replace the policy, endorsements, declarations or an insurer’s coverage determination. Examples are hypothetical unless explicitly identified otherwise.
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