Legal malpractice must be filed within one-year per Ohio law. Consult with an experienced civil attorney who handles malpractice claims to determine if such a suit is warranted. Malpractice suits can be difficult and expensive to litigation.
If you believe your attorney committed a fraud against you, you also have an option of filing a bar complaint with the county bar association and/or Ohio Supreme Court.
Unless you can demonstrate that you would have prevailed in the foreclosure action, your damages would be limited to the attorney fee you paid that was unearned. If you paid for services that were not rendered, you should file a grievance against the attorney with the Bar Association, which will investigate the claim and advise whether compensation (refund) is appropriate.