SHE chose to stay close to 10 yrs. no one forced her. SHE rec'd good living conditions with no hassles - except the unauthorized additional puppy. She had any repairs promptly. As far as smoke detectors - I don't believe it's the LL job to go in and replace batteries every year. Having been both a tenant & and LL I believe tenants have responsibilities to keep the home in clean condition. And replace light bulbs & batteries.