Has anyone needed a letter from a professional stating their dogs are well behaved?

Hi there. My husband and I are in the process of getting certified to be foster parents and our social worker has asked for a letter from a veterinarian, dog trainer, or other animal professional certifying that they believe our dogs to be well behaved enough to be around a child/children.

I myself am a veterinary professional and we have a very close relationship with our dog’s trainer, so getting the letter shouldn’t be an issue. But we don’t have any idea of what the letter should contain. Does anyone have a template of a letter that was used for similar circumstances?