Nomad,
Hubby and I are landlords. Here in the state of Wisconsin, an eviction notice is served through the court system. If we were to have an eviction notice served and the tenant asked us for more time, we could give it to them. It all depends on the landlord. The lease is legally null and void if eviction papers are served, based upon the reason.
Again as a landlord, if there are any signs of drug use in or on the property by a tenant, and we know there is a problem, the state could legally take the house as a "drug property". It doesn't matter who is doing the drugs, whether the tenant themselves and/or friends.
I'm hoping you can work something out with the landlord to give her and yourselves more time. Good luck!