Workers will inspect the property and notify the owner of record of the conditions. (realtormag.realtor.org)
In many jurisdictions, they are legally required to notify owners by certified mail and hold dogs for a certain length of time. (articles.orlandosentinel.com)
If animal control workers don't succeed in getting the fierce dog declared dangerous, then you should still notify the owner when the dog bites somebody. (articles.orlandosentinel.com)