Hello: according to what you said, as long as the landlord does not participate and cover up, he does not need to bear the responsibility. If necessary, dare to expose it, and the law will support you. Knowing that the other party is suspected of committing a crime, you are generally not responsible. As long as you sign a contract with him according to law and record your identity number, there is generally no responsibility. Article 57 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment, if the lessor rents the house to a person without an identity document, or fails to register the name, type and number of the lessee's identity document as required, it shall be fined between 200 yuan and 500 yuan. If the lessor of the house knows that the lessee uses the leased house for criminal activities and fails to report to the public security organ, he shall be fined between 200 yuan and 500 yuan; If the circumstances are serious, he shall be detained for not more than five days and may be fined not more than 500 yuan.