In Texas, your ESA housing rights rest first on state law. The Texas Fair Housing Act (Tex. Prop. Code § 301.025) treats a landlord's refusal to make a reasonable accommodation for a person with a disability as unlawful discrimination. This state protection is enforced by the Texas Workforce Commission Civil Rights Division and remains fully active. The federal Fair Housing Act (42 U.S.C. § 3604) provides the same obligation, and that statute has not changed.
Landlords in Arlington who refuse a valid ESA letter or continue charging pet fees may be in violation of the Texas Fair Housing Act and federal law. Complaints can be filed with the Texas Workforce Commission Civil Rights Division.