When Someone Other Than a Dog Owner May Be Involved in a Claim

July 26, 2026

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Who Nonowner Dog Bite Liability Can Reach

Nonowner dog bite liability can reach a landlord, a dog sitter, a business or another person who controlled the dog, though usually under negligence rather than the owner’s strict liability. California’s bite statute names the owner. Anyone else typically faces a claim only if that person had control or knowledge and failed to act reasonably. So the facts about who had the dog, and who knew what, decide whether a second party belongs in the claim.

Why the Owner Comes First

Civil Code section 3342 makes the owner of a dog liable for a bite in a public place or lawfully in a private place. That rule applies whether or not the dog had bitten before. The statute is on the California Legislature site.

Other parties fall under the general duty of care instead. Civil Code section 1714 makes people responsible for harm caused by a lack of ordinary care. The text is also on the Legislature site. As a result, these claims usually require more proof than a claim against the owner.

Landlords and Property Owners

A landlord does not usually answer for a tenant’s dog. Instead, a claim against a landlord usually turns on what the landlord knew about the dog and what power the landlord had to act. Knowledge is often the hard part. So prior complaints to the landlord, emails from neighbors and lease violation notices can matter a great deal.

Control matters too. For example, a landlord who could end the lease or require the dog to leave has more control than one who cannot. Also, a landlord who controls a common area, such as a courtyard or hallway, may have a duty in that space.

Dog Sitters and Walkers

A sitter, walker or friend watching the dog may face a negligence claim if that person lost control carelessly. For instance, a walker who let a dog off leash in a busy area may have fallen short of reasonable care. That claim exists alongside any claim against the owner.

The sitter’s own injuries raise a different question. Under the veterinarian’s rule discussed in Priebe v. Nelson, people paid to care for a dog may have limited claims under the bite statute. Still, the owner may remain liable if the owner knew of a dangerous tendency and failed to warn.

Businesses in Nonowner Dog Bite Liability

Stores, restaurants and other businesses that allow dogs may owe customers reasonable care. If staff saw a dog acting aggressively and did nothing, the business may share responsibility. Likewise, a dog daycare or groomer that controls dogs on site may face claims.

Employers can also face claims when an employee’s dog bites someone during work. That depends on whether the dog was part of the job and on the business’s own policies. For general premises rules, see slip and fall liability evidence, which explains how property control works.

Parents of Minor Owners

When a child owns the dog, the parents usually control it in practice. So the claim often names the parents, both as owners and as the people responsible for the household. Their homeowners or renters policy may respond.

Shared Fault Among Several Parties

California divides fault among everyone who contributed. When a landlord, an owner and a sitter each played a part, a jury may assign each a percentage.

For noneconomic damages, each defendant generally pays only its own share. That rule is one reason identifying every party matters. For how comparative fault works, see California comparative negligence.

Evidence for Nonowner Dog Bite Liability

Start by learning who had the dog at the moment of the bite. Then ask who owns the property and who manages it. Write down each name.

  • Prior complaints to a landlord or manager
  • Lease terms about pets
  • Animal control reports involving the same dog
  • Witness names, including neighbors and staff
  • Any business policy about dogs on site

Some of these records come only through discovery. However, neighbors often know the dog’s history and may speak with you early. Ask them politely and take notes.

Also keep in mind that nonowner dog bite liability often turns on small details. A single email to a property manager, a text to a sitter or a note in a daycare log can show that someone knew of a problem before the bite. Save screenshots of any such messages you can access, and write down where others may be stored.

Insurance for Other Parties

Landlords usually carry their own liability policies. Businesses often have commercial general liability coverage. Then a sitter may have little or no coverage, which can limit what a claim against that person yields. Ask each party for insurance details and keep a written log.

Timing

Records fade and people move. So send preservation letters early, especially to landlords and businesses that may keep video or complaint files. A short written request that names the date, the location and the dog is usually enough to start. Keep a copy of each letter and note when you sent it, since that record can matter if evidence later goes missing.

This article is general information, not legal advice. Laws change and every situation is different.