Letter Of Sale Examle Car I Am Renting A House And Received A Notice Of Trustee's Sale Letter, What Does This Mean?

I am renting a house and received a notice of trustee's sale letter, what does this mean? - letter of sale examle car

Thus, the letter received, including the replacement of the notice by the Trustee and notice of trustee sale. The letter refers to a law firm. Does this mean that the house in foreclosure? What would be my best course of action, my lease until May '09. And I have not been contacted by the management or the owners of this country.