Can I get in trouble if I sublease without my landlord's permission? Yes. Subleasing without your landlord's permission may violate your lease.You could be held in breach of contract and evicted immediately. (I. E as fast as legally allowed). No. Unless your lease already grants consent, you will need the written consent of the landlord for a sublease. Subletting isn't illegal in Texas, but you can't sublet without getting consent from the landlord. Landlord's Consent Required. Section 91.005, Texas Property Code. In Texas, you are not allowed to rent your place to someone else without your landlord's permission. This law is in Section 91.005 of Texas Property Code.