Tenant signed a written month to month lease. Four days after moving in it was clear that the tenant violated the lease agreement (e.g. no pets, having someone else living there with a key to the place that was not listed on the lease, disruptive noise). Spoke to her about this on the 4th day. On the 9th day she gave written notice of moving. She was not asked to leave, she chose to leave on her own accord. Am I responsible to return her security deposit since she violated terms of the agreement?