No. Unless your lease already grants consent, you will need the written consent of the landlord for a sublease. The landlord is not REQUIRED to sign the sublease.First, do you have a written lease with your landlord? However, it probably violates the terms of the lease that they signed because most leases prohibit subleasing without approval of the landlord. If your rental agreement prohibits subleases or assignments, you must get your landlord's permission before you sublease or assign the rental unit. California law requires tenants to seek explicit, written permission from their landlords to sublet if it is not already allowed in the lease. Here's some language for a sample letter requesting sublet permission. Use it in part or full when submitting your proposal. If you have a lease for a set term, like one year, you can sublet with or without your landlord's permission, unless they prohibit this in the written lease. It's not great news to find out that my landlord can evict me for no reason.