I would prefer this not be a real place. It shouldn't really matter but it seems weird to publish a real address publicly without knowing exactly what is there. Also, BrAPI is international so it should include the country code.
I would suggest "123 First Street, Townsville, AB 12345, USA"

It was in the original yaml, I will change it in both places

This change needs to be double checked. These are all Array type objects, so a singular example would be an array of values. changing the key to examples is incorrect, unless there is a good technical reason

I was following the Java representation of JSON schema, which has both example and examples. example take an object and examples a list of objects. https://json-schema.org/understanding-json-schema/reference/annotations. I think the singular ‘example’ is just a helper function for the case when the list has a single element. In OpenAPI you can use either https://swagger.io/docs/specification/v3_0/adding-examples/, but example is singular and examples is a list.