Hétong yuèdǐ dàoqī, rúguǒ yào xùzū, děi tíqián yí ge yuè gàosu fángdōng.
The contract ends at the end of the month; if you want to renew, you have to tell the landlord a month ahead.
Tips
usage
The tenant's lease verbs: 续租 'to renew', 退租 'to end the lease and move out', 转租 'to sublet'. For a rented car or equipment, 续租 means to keep it longer.