Landlord evicting us after only 11 Days of Renting

[Britney Durgin]

My Husband and I have recently moved into a one bedroom apartment on the ground floor of our Landlords home. After only being her tenant for 7 days she informed us that she is selling her home. 

We were officially served a notice to vacate yesterday and have until February 12th to find a new place to live. 

Does anyone know if she can do this to us or have any advice on how to deal with this or any legal information. I just feel that this cannot be okay.

We are currently living in Templeton California.