In a triple-net lease, the tenant pays the three nets: property taxes, insurance, and common area maintenance. On the insurance line, that means each tenant carries their own coverage and reimburses a share of the building policy. It is a clean arrangement on paper. In practice, it is where a lot of retail plaza owners quietly carry risk they think they handed off.

I have managed shopping centers and I write retail plaza insurance for owners across the Gulf Coast. The pattern I see over and over is an owner who assumes that because the lease says the tenant insures, the owner is covered. The lease shifting the cost is not the same as the risk being gone. When a customer slips in a tenant's unit and the tenant's policy lapsed three months ago, the injured party sues everyone, and the landlord's name is on the list.

What the tenant should be required to carry

A retail lease insurance exhibit should spell out minimums, not leave them to the tenant's judgment. At a minimum, require:

The lease shifting the cost is not the same as the risk being gone. A certificate is a snapshot. Coverage is what exists on the day of the loss.

The three endorsements that actually protect the landlord

Requiring the tenant to carry coverage is step one. Requiring them to extend it to you is what protects the building. Three lease provisions do the work:

Additional insured. The tenant's general liability policy should name the landlord, and the property manager, as an additional insured by endorsement. This is the difference between the tenant's insurer defending you when you are pulled into a claim from that unit, and you funding your own defense. It has to be an endorsement on the policy, not just a line typed into the certificate. More on that in a second, because it is the single most common gap.

Waiver of subrogation. This stops the tenant's insurer from turning around and suing the landlord to recover what it paid. Without it, you can win the front-end claim and lose the back-end recovery action.

Primary and non-contributory. This makes the tenant's policy pay first, before your policy is touched, on claims arising from their operations. Without it, insurers argue over who pays, and your loss history takes the hit even though it was the tenant's fault.

The certificate is not the coverage

Here is the mistake that costs owners the most. A certificate of insurance is a snapshot issued by an agent. It is evidence, not a contract. The box on the certificate that says "additional insured" means nothing on its own. What matters is whether the actual additional insured endorsement, the CG 20 11 or CG 20 26 form or its equivalent, is attached to the tenant's policy. I have seen certificates that check the additional insured box on a policy that carries no such endorsement. When the claim comes, the tenant's insurer looks at the policy, not the certificate, and the landlord discovers they were never actually added.

So the landlord's verification is not just collecting a certificate. It is:

You still need your own building coverage

None of this replaces the landlord's own policy. Tenant coverage protects the tenant's operations and, through the additional insured endorsement, extends some liability protection to you. It does not insure the structure, the roof, the parking lot, or the landlord's own general liability as a property owner. That is your commercial property and general liability coverage, and on a smaller plaza it often makes sense to package the two in a business owners policy. The tenant insurance program and the landlord policy work together. Neither one covers the whole plaza alone.

Where owners get burned

Three failure points show up again and again:

The lapsed tenant. A tenant provides a good certificate at signing, then stops paying their premium a year later and no one notices because no one is tracking renewals. The gap is invisible until a claim lands in it.

The underinsured tenant. The lease requires 1 million and the tenant carries 500,000, or carries the right limit but on a policy riddled with exclusions. The certificate looked fine at a glance.

The paper additional insured. The certificate says additional insured, the policy does not actually include the endorsement, and the landlord is defending themselves on their own dime in a suit that was the tenant's fault.

Every one of these is preventable with a real lease insurance exhibit and a tracking habit. It is not glamorous work. It is the kind of thing that costs nothing until the year it saves you a six-figure loss.

Make it a system, not a signing-day formality

The owners who do this well treat tenant insurance as an ongoing system: clear requirements written into every lease, a collected certificate and endorsement at move-in, and a calendar that flags every tenant's renewal so no one lapses unnoticed. It is the same discipline whether you own one strip center or ten.

Reviewing lease insurance exhibits, setting the right required limits, and helping owners build a certificate-tracking habit is part of what I do on the retail plaza side. If you want a second read on what your leases require versus what your tenants are actually carrying, look at our strip center insurance page or call 941-952-7991 and we will go through it together.