@Christina529 After reading through everything, it appears to be a difficult situation.
I would agree 100% with @Robin to kick them out ASAP.
BUT here the (ridiculous) US-Law (and of cause Airbnb policy is confirm):
You can NOT ask for documentation for service dogs!
The guests don't need to tell you in advance.
You have to accept guests with a service dog.
AND OF CAUSE 😉 NO extra fee allowed (anti-discrimination law)
Perhaps this works?:
I would email Airbnb to recognize the (ONE) "service dog" and would kick them out for the 2nd dog on your video.
"...Thanks for letting us know that guests came with a service dog.
Of cause this is not a problem. But however, there is a 2nd dog on our property in
violation of our house rules. Therefore I cancel the rental agreement..."
Good luck with your review :-0
Airbnb Q & A
Do guests have to disclose the presence of an assistance animal before booking?
No. While guests are not required to disclose the presence of an assistance animal before booking, we always encourage transparent communication to ensure a smooth experience for all.
Is it okay to charge an additional fee, or increase the cleaning fee, to accommodate the assistance animal?
No, under Airbnb’s Nondiscrimination Policy, hosts cannot charge extra fees to guests with an assistance animal.
Is it okay to request documentation for an assistance animal?
Airbnb does not require documentation when traveling with an assistance animal. In the United States, guests are not required to provide documentation for a service animal and there is no legally recognized certification process for service animals.
The law states:
§ 35.136 Service animals
(f) Inquiries. A public entity shall not ask about the nature or extent of a person’s disability, but may make two inquiries to determine whether an animal qualifies as a service animal. A public entity may ask if the animal is required because of a disability and what work or task the animal has been trained to perform. A public entity shall not require documentation, such as proof that the animal has been certified, trained, or licensed as a service animal. Generally, a public entity may not make these inquiries about a service animal when it is readily apparent that an animal is trained to do work or perform tasks for an individual with a disability (e.g., the dog is observed guiding an individual who is blind or has low vision, pulling a person’s wheelchair, or providing assistance with stability or balance to an individual with an observable mobility disability).