Generally speaking, no. By signing the lease contract you have obligated yourself to perform pursuant to the terms of that contract. If you breach that contract by terminating early, you will be responsible to the landlord for the damages caused by the breach. In the case of an early termination of a lease, those damages are primarily the cost of lost rent while the landlord finds a new tenant, and also the cost of making the property ready for a new tenant and marketing the property.