Dog Bites Lawyer for Waltham, MA

How dog bites cases proceed under Massachusetts law

Massachusetts is a strict-liability state for dog bites, which sets a Waltham dog-bite case apart from most other injury claims. Under M.G.L. c. 140 sec. 155, the owner or keeper of a dog is liable for the damage the dog causes without the injured person having to prove that the dog had bitten before or that the owner knew the dog was dangerous. There is no common-law one-bite rule in Massachusetts. The statute removes the central hurdle that exists in many other states, which is proving the owner's prior knowledge.

The statute provides only two defenses, and they are narrow. The owner or keeper can avoid liability only by showing that the injured person was trespassing or committing another tort at the time, or was teasing, tormenting, or abusing the dog. Massachusetts adds an important protection for young children: a child under the age of seven is presumed not to have been trespassing, teasing, tormenting, or abusing the dog, which shifts the burden to the owner to prove otherwise. For a Waltham, Middlesex County child-victim case, that presumption is a significant advantage.

Recovery in a Waltham dog-bite case usually comes from the owner's homeowner or renter insurance policy, which generally covers liability for dog bites, and in some circumstances a landlord may also bear responsibility, for example where the landlord knew of a dangerous dog on the property and had the ability to remove it. The standard three-year limitations period under M.G.L. c. 260 sec. 2A applies. Dog-bite injuries often involve scarring and disfigurement, infection risk, and lasting psychological trauma, and these effects are especially pronounced in children, so the case is built not only on the immediate wound but on the long-term physical and emotional consequences.

A second proceeding usually runs alongside the civil claim and is frequently confused with it. Under M.G.L. c. 140 sec. 157 any person may file a written complaint with the municipal hearing authority that a dog kept in the city or town is a nuisance dog or a dangerous dog, and the hearing authority investigates and holds a public hearing. That statute is about what happens to the dog, not about compensating the injured person, and its outcome does not decide the sec. 155 claim. Its standards are also narrower than people expect: sec. 157 provides that no dog shall be deemed dangerous solely for growling or barking, or based upon the breed of the dog, or where the dog's reaction to another animal or a person was not grossly disproportionate to defending itself, its offspring or a person, to a crime being committed against its owner or their property, to being teased, tormented, battered, assaulted or injured, or to someone having breached a closed enclosure the dog was kept in. The same section gives a person under the age of 7 a rebuttable presumption that they were not committing a crime, provoking the dog or trespassing, which mirrors the protection sec. 155 gives a child in the civil case. M.G.L. c. 140 sec. 136A supplies the definition the hearing turns on: a dangerous dog is one that without justification attacks a person or domestic animal causing physical injury or death, or behaves in a manner a reasonable person would believe poses an unjustified imminent threat of physical injury or death.

Massachusetts statutes and case law

• M.G.L. c. 140 sec. 155. Strict liability for dog bites; the owner or keeper is liable without proof of prior bites or knowledge of dangerousness. The only defenses are that the victim was trespassing or committing a tort, or was teasing, tormenting, or abusing the dog. A child under seven is presumed to have done none of these.
• M.G.L. c. 260 sec. 2A. Three-year statute of limitations for the dog-bite claim.
• M.G.L. c. 231 sec. 85. Modified comparative negligence; relevant only in the narrow circumstances where a victim's conduct toward the dog is at issue.
• M.G.L. c. 231 sec. 6B and 6C. Pre-judgment and post-judgment interest applied to a dog-bite damage award at statutory rates.
• M.G.L. c. 140 sec. 136A. Defines the terms the dog statutes run on, including "dangerous dog", which is a dog that without justification attacks a person or domestic animal causing physical injury or death, or behaves so that a reasonable person would believe it poses an unjustified imminent threat of physical injury or death.
• M.G.L. c. 140 sec. 157. The municipal hearing track for a nuisance or dangerous dog, separate from the civil claim. Any person may complain in writing to the hearing authority, which investigates and holds a public hearing. No dog may be deemed dangerous solely for growling or barking, or based on its breed, and a child under 7 gets a rebuttable presumption of not having provoked or trespassed.
• M.G.L. c. 140 sec. 145B. Requires every dog, cat or ferret 6 months or older to be vaccinated against rabies by a licensed veterinarian and revaccinated at the manufacturer's intervals, with a certificate and tag; whether the dog was current is one of the first facts established after a Massachusetts bite.

Common case patterns in Waltham

1. A bite by a neighbor's or friend's dog in Waltham: strict liability under M.G.L. c. 140 sec. 155, with recovery typically through the owner's homeowner or renter policy.
2. A child victim under seven: the statutory presumption protects the child from the teasing-or-trespassing defense, strengthening the Middlesex County claim.
3. A delivery or postal worker bitten while lawfully on the property: the lawful-presence element is satisfied, and strict liability applies.
4. A landlord-tenant dog case where the landlord knew of a dangerous animal: the landlord may bear responsibility in addition to the owner or keeper.
5. An injury from a dog knocking a person down rather than biting: the statute reaches damage the dog causes, not only bites, so a knock-down injury can qualify.
6. A Waltham bite where the dog's rabies vaccination status is unknown: M.G.L. c. 140 sec. 145B requires vaccination of every dog 6 months or older, and the certificate and tag are among the first records requested after the bite.

Typical timeline

1. In the first days after a Waltham dog bite, medical care and wound documentation come first. Bite wounds carry a high infection risk and often require careful cleaning, antibiotics, and sometimes surgical repair, and photographs of the wound at each stage of healing build the record. The dog owner and any insurance information should be identified, and the incident should be reported to the local authorities, which creates an official record.
2. Months one through six are the treatment and documentation phase. Scarring and disfigurement are evaluated as the wound heals, and where a child is involved, the psychological effects (fear of dogs, sleep disturbance, anxiety) are documented through treating providers. Because Massachusetts is a strict-liability state, the liability question is usually straightforward, so the case turns on documenting the full extent of the physical and emotional harm. A demand is prepared once the medical picture is clear.
3. If the owner's insurer does not offer a fair resolution, suit must be filed within three years under M.G.L. c. 260 sec. 2A and proceeds in the appropriate Middlesex County court. Because liability is generally clear under M.G.L. c. 140 sec. 155, the contested issue is usually the value of the scarring, disfigurement, and psychological harm, and most filed cases resolve before trial.

What can be recovered

• Past and future medical expenses, including wound care, infection treatment, and any reconstructive or scar-revision surgery.
• Pain and suffering for the experience of the attack and recovery.
• Disfigurement and scarring, a separate damages category in Massachusetts that is often central to a dog-bite case.
• Psychological harm, including fear, anxiety, and post-traumatic stress, which is especially significant for child victims.
• Past lost wages and, where the injury is severe, future lost earning capacity.
• Loss of consortium for a parent or spouse where applicable.

Key terms

Strict liability

The rule under M.G.L. c. 140 sec. 155 that holds a dog owner or keeper liable for a bite without proof the owner knew the dog was dangerous.

One-bite rule

The common-law rule requiring proof a dog had bitten before, which Massachusetts does not follow for dog-bite claims.

Keeper

A person other than the owner who has custody or control of the dog, and who can also be held liable under the strict-liability statute.

Statutory presumption for young children

The rule that a child under seven is presumed not to have been trespassing or teasing the dog, shifting the burden to the owner to prove otherwise.

Disfigurement

A separate Massachusetts damages category, distinct from pain and suffering, that compensates for visible scarring left by the attack.

Adult victim vs. child victim under seven

More questions from Waltham residents

• Do I have to prove the dog bit someone before to win my Waltham case?

  No. Massachusetts is a strict-liability state for dog bites under M.G.L. c. 140 sec. 155. The owner or keeper is liable for the harm the dog causes without you having to prove the dog had bitten before or that the owner knew it was dangerous. There is no one-bite rule here. The only defenses are that you were trespassing or committing a tort, or were teasing, tormenting, or abusing the dog, and those are narrow.

• My child was bitten by a dog in Waltham. Does the law treat that differently?

  Yes. Under M.G.L. c. 140 sec. 155, a child under the age of seven is presumed not to have been trespassing, teasing, tormenting, or abusing the dog. That presumption shifts the burden to the dog owner to prove otherwise, which strengthens a child-victim case. Child dog-bite cases also focus heavily on scarring, disfigurement, and lasting psychological effects, which are documented through the child's treating providers in your Middlesex County matter.

• Who pays for a Waltham dog bite, the owner personally?

  Recovery usually comes from the owner's homeowner or renter insurance policy, which generally covers liability for dog bites, rather than from the owner's personal assets. In some circumstances a landlord may also bear responsibility, for example where the landlord knew of a dangerous dog on the property and could have removed it. The first telephone consultation identifies every policy and party that may be responsible for your Middlesex County injury.

• How long do I have to file a Waltham dog-bite claim?

  A dog-bite claim generally must be filed within three years of the bite under M.G.L. c. 260 sec. 2A. Acting sooner helps preserve the record, because photographs of the healing wound, the medical documentation, and the official incident report are strongest when gathered close to the event in your Waltham matter.

• Does Jim Glaser Law handle Waltham dog-bite cases on contingency?

  Dog-bite cases accepted by the firm are handled on contingency, which means no attorney's fee unless and until the matter resolves with a recovery to the client; case-related costs and expenses are addressed in the written fee agreement. The first telephone consultation is offered without charge and includes a review of the strict-liability framework under M.G.L. c. 140 sec. 155 as it applies to your facts.