In Ohio, your ESA housing rights rest first on state law. Ohio Revised Code § 4112.02(H) makes it an unlawful discriminatory practice to deny housing, or to impose different terms and conditions, because of disability, and that includes refusing a reasonable accommodation such as an emotional support animal. 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 Circleville who refuse a valid ESA letter or continue charging pet fees may be in violation of ORC § 4112.02 and federal law. Complaints can be filed with the Ohio Civil Rights Commission.