In Ohio, your ESA housing rights rest first on state law. Ohio Revised Code § 4112.02(H) makes it an unlawful discriminatory practice for a housing provider to refuse reasonable accommodations, including assistance animals, that a person with a disability needs to use and enjoy a dwelling. This state protection is enforced by the Ohio Civil Rights Commission 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 Carey who refuse a valid ESA letter or continue charging pet fees may be in violation of ORC § 4112.02(H) and federal law. Complaints can be filed with Ohio Civil Rights Commission.