States differ on whether a tenant may sublease an apartment without the express permission in the tenant’s lease or consent from the landlord. If your lease permits subleasing, the fact that your landlord does not consent to it should not deter you from subleasing. If your lease does not allow subleasing or is silent about it, you should obtain consent from your landlord. The act of subletting can be complicated. You typically will be considered the landlord of the subleaser and will be responsible for collecting rent and making repairs to the apartment.