I live in a rv and have rented my lot for five years. i singed one lease. then my lanlord got ill?

his poa refushed to sign a new lease. i never waved my year leash. now my landloard is dying and his brother sued to become the new poa. his brother wants me out. i am a good tenate. i never been late or done anything to be kicked out. can i sue for not following the landlord tenate law rcw 59.20.