Most leases require a landlord's permission before subleasing.
This is permitted bty law, therefore it is advisable that you ask the landlord for his permission prior to even considering subletting. This means that if the person to whom you are subletting does not pay the rent or damages the apartment, you must pay for it and then sue him for reimbursement. A subleasing agreement makes it much easier for you to prove to the court that you and your subless3ee had discussed and come to agreement about the various responsibilities. Northing can displace your primary responsibility to the landlord unless the landlord completely released you form your obligations. A sublease should be as close as possible to your original lease, so that your sublessee is bound to the same rights and obligations as you were.