Legal advice for my lease?

At our home that we are renting, our lease ended 6/30/11. Our landlord offered at the beginning of June to sign a new year lease. We needed to think about it, and have decided to sign another year lease. We have been trying to contact our landlord for the past 2 weeks, with no answer. She finally calls today, on the 1st asking if she can come and get the check. I told her that I needed to see the lease first. She got upset saying that the rent is due on the first, I still told her that I need to see the lease. She is very unstable and you never really know what you are going to get from her. From a legal standpoint, what are my options? Do I have to pay her? Or should I wait for the lease?