Why don't you call the manager and offer to put up an extra security deposit for another dog? I have found that works wonders. Tell him your story. He may have a kind heart. As a last resort if things aren't going well, I would mention that other residents have more than one dog and you would like to know what arrangements were made between them and the manager so this could happen and that you would be willing to agree to the same arrangements. I think you will have him there. Good luck. I'm praying for you.