A renter rented a house from a landlord. The renter and the landlord entered into a written lease providing that the renter was to pay a fixed monthly rent plus all taxes. A month later, the renter was offered a job in another state, and the renter assigned her lease to a friend by written agreement. The renter forgot to tell the friend that he was liable to pay the taxes on the residence during the period of the lease. As a result, the friend failed to pay the taxes on the house. The landlord was informed that there was a tax lien on the residence. She paid the lien and brought suit against the friend for the amount. Who will prevail