CA Roomate of Previous Owner Refusing to Vacate

[Laura Pfister]

Need some advice I have not been in this specific situation... We purchased a property in CA that closed 3 weeks ago, the previous owner had a roommate (paying below market rent) for a room in the home, he provided him 30 day notice to vacate the property as he was a month-to-month tenant. Today was supposed to be the final day they occupied the property and we were just notified by the previous owner that the roommate was refusing to leave the property. Trying to figure out best course of action to get the roommate out legally as well as hold the owner accountable for not delivering the property on the date per the contract.