jrshabby : Technically it is not a lease law it is a restraint law. Cat wandering around the neighborhood with no tag/license is a stray. There is even a poop law, technically you cant let your cat wander around pooping in peoples lawns either. publichealth.harrisc ountytx.gov/Resource s/Animals-and-Pets/A nimalLaws/Anima A. All dogs and cats must be kept under restraint while in the unincorporated areas of Harris County, Texas. The custodian of a dog or cat is not authorized to have, harbor or keep any unlicensed dog or cat, or to allow any dog or cat to become a stray. Report animals in violation of the leash law to our shelter by calling 281.999.3191.
@tinytim : If it's a stray you can't exactly prove ownership so it's really a useless law.