Landlord verbally agreed to renew lease in July, then allegedly sold the house we're living in, unbeknownst to us, and gave us 30 days notice by email to move out on the day the lease ends, Aug. 31. We are now buying a house and can't close until 3 weeks after the lease ends and want to stay until Sept. 20. He told us the buyer is moving in on Sept. 1. Can he change the locks the day our lease is up? How long does the eviction process take in Cambridge? Should we pay rent for September or just let him keep our security deposit for Sept. rent? (he is in bankruptcy proceedings and we don't trust he will return our sec. dep). Does being served a court order to evict affect our credit and therefore affect our ability to obtain a mortgage for our new house?