Any claim or right arising out of an alleged default or breach of warranty may be discharged in whole or in part without consideration by a written waiver or renunciation signed and delivered by the aggrieved party.
Waiver or renunciation of claim or right after default - UCC 2A-107
Ohio Rev. Code Ann. § 1310.05, under Chapter 1310 | Leases.
Ohio Rev. Code Ann. § 1310.05