Landlord trying to evict.?

Hello, I hope someone can help. My landlady phoned my husband and I back in July and told us to stop paying rent since she was no longer making payments. Over the next few months we discussed buying the house from her. Then in November she phoned and told us to start paying rent again,which we did immediately. We started applying for a loan and put an offer in a few weeks ago. She was on board with all of this. Then four days ago we found a form taped to our door to “Pay rent or Quit”. We immediately phoned her to ask what was up. She stated she needed to tell the bank why she could not make her payments and was basically using us to do it. She then told us to pay her $8000 or be evicted. We have not had a lease since last July. I explained to her that she told “us” not to pay rent. She then stated she had many debts to pay off and it was too bad for us. We already pay $2200 in rent plus her homeowners dues every month. I told her we had a verbally agreement which was also binding. Then this evening our doorbell rang and we were served eviction papers. Please does anyone know what we can do from here. Thanks so much!!
My written lease ended last July. I started paying the rent to the landlord,not the bank. I applied for a pre-approval loan at a different bank. I have written correspondence from the landlord telling us not to pay rent. Thanks to everyone who is helping me.