From what you have written about signing a one (1) year lease for the property where you placed a trailer upon it to live, you do not have to move until your lease is up regardless of whether or not the landlord owner sold it unless you have signed a subsequent agreement with the landlord agreeing to accept some money to move out.Under the laws of all states in this country, if you signed a lease for a certain time period, you are entitled to conclude your lease.If the landlord wants you to end your lease early, you should advise your soon to be former landlord that you do not intend to do so, or if you are willing to do so, he or she needs to pay you a cetain sum of money to move early.You should consult with a landlord tenant attorney.Good luck.