First,speak with your landlord about your concerns with these violations. let them know that you're worried and would like to comply, and list the steps you're taking to be better neighbors. if they see you're being proactive about the situation and being overly-responsible, then the violations that keep coming in will be looked at with a more critical eye.
(aka if they KNOW the dog is in a crate by 9pm, and they get a complaint about barking outside at 10pm, then clearly the landlord knows its not your dog)
...as far as the house --- if you're in a good financial situation - go for it! it typically takes a few weeks to close even in the best situations, so at most you'd be paying about 3 months for BOTH places. that might be good for you if you need to take your time cleaning/repairing/moving items.
like others have said. talk with the landlord about subletting, or penalties for leaving your lease a couple months early.