Unfortunately, you are bound to the contractual lease agreement of the landlord on title, regardless of the financial situation of the landlord.
Wit the knowledge that the landlord is in foreclosure trouble, do you really need a notice to vacate? Because you don't have much insight to the details of what might be forthcoming, you may want to give your own "notice" and get out of there and settled into some place comfortable... especially with the upcoming holidays, you don't want to spend them stressing and moving.
In your next rental, use the same method you used to find out about your current landlord's situation and "sift" through landlords until you find one with no mortgage woes.
Or, if you are able, consider taking advantage of the current market and become an owner and rid yourself of the fear of being put in this postion again.
My best to you!
Keisha Mathews, REALTOR
Certified Distressed Property Expert (CDPE)