If you want to sell or transfer the leased car, you will need to contact the leasing company and inquire about their policies and procedures. They may allow you to transfer the lease to someone else, but there may be fees or penalties involved. You will also need to make sure that the new person meets the leasing company's credit and other requirements.
If the leasing company does not allow you to transfer the lease, you may have to return the car to them at the end of your lease term. You may also be responsible for any excess mileage charges or other fees.
It's important to understand the terms and conditions of your lease agreement before you enter into it. This way, you can avoid any surprises down the road.