Lucy rents an apartment to Tonya and her family. A lease provides that "Lucy will rent an apartment to Tonya for one year, commencing on January 1, 2017, with $1,500 in rent payable on the first of the month." On October 1, 2017, Lucy provides written notice to Tonya that the rent will increase to $1,600 per month, upon the conclusion of the current lease. Immediately upon receipt of Lucy's letter, Tonya calls Lucy and tells her that she cannot afford $1,600 but fails to vacate the apartment at the end of the year.

What are Lucy's options regarding Tonya as a tenant?