Too much trouble and risk if things go wrong. Makes evictions more complicated and costly. especially in a tenant friendly state like CA. All pain, for no gain.
Cons of Subleasing Not all subleasers are dependable; sometimes, they sublet because they can't make ends meet, which can be an issue. Although the original tenant is financially responsible, that doesn't remove all risk for landlords.
Like any other tenant, subtenants must be evicted properly through the courts, or a master tenant or landlord could face severe legal consequences. Generally, a master tenant, landlord or property manager may evict a subletter for the same reasons as they would a tenant.
Lessee shall not assign this Lease or sublet any portion of the Premises without prior written consent of the Lessor, which shall not be unreasonably withheld. Any such assignment or subletting without consent shall be void and, at the option of the Lessor, may terminate this Lease.
San Francisco, Oakland and Berkeley passed laws to protect renters in roommate/subletting situations. If you live in one of these cities, your landlord can neither deny you the right to nor evict you for replacing a roommate or subletting a room without their consent.
A sublease contract means less control over apartment changes. As a subtenant, you have limited control over the apartment as you are not the primary leaseholder. The original tenant has ultimate control over the property and can impose restrictions or limitations on your use of the space.
Reasons a landlord might deny a sublet request Allowing the sublet would result in too many people living in the unit. Too many residents would be under 18. The prospective subtenant won't agree to the same terms as the original rental agreement. The prospective subtenant plans to keep pets in the unit.
No tenant may sublet an apartment without the written consent of the landlord. If you did not consent to the sublease then it is not valid or enforceable. Your remedy is to terminate your tenant's lease, which will also terminate any subleases.