Why the Certificate of Insurance in Your Vendor File Might Not Cover a Claim
Every property management company keeps a vendor file. Landscapers, HVAC contractors, plumbers, roofers, each one with a certificate of insurance collected once, usually during onboarding, then filed and forgotten. That file feels like protection. In practice, a certificate on file and an active, current, properly endorsed insurance policy are two different things, and the gap between them usually stays invisible until a claim forces someone to look.
What a certificate of insurance actually promises
A COI is a summary a vendor's insurance agent hands over on request. It typically lists general liability coverage for property damage or injury the vendor causes, workers' compensation for the vendor's own employees, and sometimes commercial auto coverage if the vendor drives to your properties or an umbrella policy for larger claims. Many management agreements also require the vendor's policy to name the property management company as an additional insured, so a claim from the vendor's work runs through the vendor's carrier instead of yours. Which coverages you actually need depends on the vendor: a landscaper and a security contractor do not carry the same risk, and a real compliance program prices that in rather than collecting the same generic COI from every vendor on the list.
The part most files never verify
Here is the piece that trips people up: a certificate is a summary, not a guarantee. It shows that a policy existed on the date it was issued. It does not, by itself, prove the policy is still in force, and it does not prove the additional insured status was ever actually granted. That status has to come from a real endorsement, a document that amends the underlying policy. The certificate can say "additional insured" in a box; if no endorsement backs it up, the claim carrier is not obligated to honor it. One case worked through in the insurance-risk literature involved a property manager who had collected certificates showing additional-insured status for years. When a vendor's work caused a loss, the carrier denied the claim, because no endorsement had ever actually been issued, only a certificate that said one had. The certificate had been treated as proof. It wasn't.
The everyday version of this is simpler and more common: a vendor's general liability policy lapses, gets replaced, or changes carriers, and nobody updates the file. A landscaping crew damages a sprinkler system, an HVAC vendor's leak floods a leased office, a subcontractor's ladder clips a pedestrian on a walkway. The management company looks for the vendor's certificate, expecting the vendor's carrier to pick up the claim, and finds a COI that expired eight months ago.
Why one check at onboarding isn't enough
Insurance policies renew on their own schedule, not yours. A vendor you onboarded in good standing eighteen months ago may be uninsured today and you would have no way to know without checking again. Property management compliance guidance recommends treating this as continuous monitoring rather than a one-time file check, with automated alerts well ahead of each expiration date (a 60, 30, and 7 day cadence is a common pattern) so a lapse gets caught before it turns into a claim, not after. For an office managing dozens of vendors across a handful of properties, doing that by hand, every vendor, every renewal, on top of leasing and maintenance and everything else, is exactly the kind of task that quietly stops happening.
Where this fits with a person still deciding
This is a good example of work an agent can carry without taking over judgment. An agent can read every vendor file against what the contract actually requires, flag the ones with an expired certificate, a missing additional insured endorsement, or coverage below the required limit, and draft the renewal request to send to that vendor. A person on your team reviews the flagged list and the draft before anything goes out. The agent does not decide which vendors are worth the risk of skipping, and it does not waive a requirement because a vendor has been reliable for years. It just makes sure the gap gets seen instead of discovered during a claim. See how this fits alongside the rest of a property management team's admin work.
A vendor file full of certificates looks like risk management. Whether it actually is comes down to whether anyone is still checking the dates.
Sources: Vantage Point Risk, "Certificate Tracking for Property Managers: Verifying Vendor and Tenant COIs"; Jones, "Vendor Certificates of Insurance: What Property Managers Need to Know"; NetVendor, "The Best Vendor Compliance Guide for Property Management Teams".