Ohio Rev. Code Ann. § 5301.072
(A) No covenant, condition, or restriction set forth in a deed, and no rule, regulation, bylaw, or other governing document or agreement of a homeowners, neighborhood, civic, or other association, shall prohibit or be construed to prohibit any of the following:
(2) The display on any property of the flag of the United States or the national league of families POW/MIA flag if the flag is displayed in accordance with any of the following:
(3) The display on any property of the state flag as defined in section 5.01 of the Revised Code if the flag is displayed in accordance with any of the following: