I know that this is a bit extreme, and I'm certain that not everyone would take these measures. But you are entitled to quiet enjoyment of your apartment, which is obviously not the case here. Please do not consider this as legal advice ... I'm simply relating an incident which, in this instance, had a positive outcome. You should definitely consult an attorney before doing anything proactive. I wish you the best of luck.
I hope you can read about your rights from the State of Texas Attorney General's website.
Know your rights before you go to your landlord.
File a complaint with the City of Houston Housing...
Have you talked to your landlord or managment company about options to break your lease? If you have and that is not a good option, you may want to discuss this with a real estate attorney. The attorney may find just cause for you to be able to break your lease and can help negotiate with the landlord or management company on your behalf.
All the best,