The legal relationship between a tenant and a landlord of the apartment is governed by a few different factors. First, several statutes in the Texas Property Code, particularly Chapter 92. Second, the oral or written lease. The terms of the lease are considered legal documentation for the acting relationship of the landlord and tenant. Read the lease carefully before you sign it, you will be held accountable for the content. If there is something you do not agree with, propose a change to the landlord. Once the lease is written out and signed by both parties, it becomes a legally binding document. Changes can be initialed by both parties, putting the change into effect.
Information gathered from the Texas Attorney General website.