A tenant can end a tenancy by providing one month’s notice on a month-to-month lease. If they are breaking a fixed term lease, however, they may have to pay the landlord  for costs of re-renting the unit – like advertising or lost rent. Landlords, however, are obligated to make every effort to limit these costs by trying to rent the unit as soon as possible.Landlords still need to provide the appropriate notice when ending a tenancy for any reason.