I heartily agree with the above statements. unbelievable B*lls of that guy.... but if you do wind up keeping it- look into dog walking services that come to the house once a day (or night) to walk/feed/play with the dog. Doggie daycare is also good, but can be more pricey. We used doggie daycare when we were selling our house and moving. They loved it! My friend who works long hours has a dogwalker to come exercise her 2 boxers. she says it is well worth the money. It is becoming a popular small time job- many teenagers do it in our area.
oh yeah, your landlord may ask for extra security deposit $$ to cover potential damages. That is fairly standard here. Maybe you should get the ex to pay it.....
did I say one project at a time?