The owner of the dog is liable. The applicable statute is Civil Code section 3342: 3342. (a) The owner of any dog is liable for the damages suffered by any person who is bitten by the dog while in a public place or lawfully in a private place, including the property of the owner of the dog, regardless of the former viciousness of the dog or the owner's knowledge of such viciousness. A person is lawfully upon the private property of such owner within the meaning of this section when he is on such property in the performance of any duty imposed upon him by the laws of this state or by the laws or postal regulations of the United States, or when he is on such property upon the invitation, express or implied, of the owner. In my opinion, neither property owner would be liable, only the owner of the dog. As far as damages, you might recover the equivalent of the medical expenses incurred. If you want to pursue, first make a claim against the dog owner's renter's insurance. Ask for at least twice that amount as they never pay what you initially ask for. If the offer made, or if none is offered, you can sue the dog owner in small claims court. His renter's insurance will pay the judgment, so long as it is a covered claim, which it likely should be. Without knowing what exclusions his policy has I cannot tell you for certain whether it is a covered claim.
Answered on Sep 12th, 2012 at 3:43 PM