If your assistance animal injures someone

What changes immediately

A direct threat argument that would have been speculative before an incident becomes evidenced after one. A provider may lawfully refuse or withdraw an accommodation where the specific animal poses a significant risk of substantial harm that no other accommodation would reduce, and a bite is exactly the objective evidence that standard asks for.

What still applies

• The assessment still has to be individualised. One incident is not automatically a significant ongoing risk, and the circumstances matter: provocation, whether the animal was restrained, severity.
• The provider still has to consider whether another accommodation would reduce the risk, such as muzzling in shared areas, restricted routes, or a behaviour plan.
• Removal is the end of that analysis, not the start of it.

Liability

Yours, and in many states strictly so: a number of jurisdictions impose liability on an animal owner for a bite regardless of whether the animal had ever shown aggression before. An accommodation has no bearing on this at all, and renters insurance is the thing that matters here rather than anything in your letter.

The first 48 hours

• Write down what happened while you remember it: time, place, what preceded it, who was present.
• Cooperate with animal control. Vaccination records will be asked for.
• Tell your insurer. Late notice is how coverage gets denied.
• Do not agree in writing to remove the animal in the first shaken hour. Take advice.