Landlord entering apartment without notice
Today my boyfriend was coing out the bathroom in just his underwear, and found some mexican standing in our living room. He said he was there to finish up some drywall work from where they put a new airconditioner in 5 weeks ago. I called the apartment manager and she said that she sent us a letter informing us of this. The letter was dated 7-9-07. Just because she gave us notice originally 5 weeks ago, does that give them the right to continue to come in week after week? Every time we think they are done, the following Monday morning we wake up to strangers in the apartment as if they live there. They don't knock, they don't bother to knock on the bedroom door to let us know they are there. They just come in and start working. It has scared me so much the first time it happened I called the police thinking someone broke in. How long is their notice to enter good for?