Can I File a Lien Without a Signed Contract?

Possibly. In Ohio, mechanic's lien rights generally arise from furnishing labor, work, services, equipment, or materials that improve real property—not necessarily from having a signed written contract. See Ohio Revised Code § 1311.02.

Many construction projects proceed based on oral agreements, purchase orders, invoices, emails, text messages, or other evidence showing that work was authorized and performed. If you can establish that you provided labor or materials for the improvement of the property and remain unpaid, you may still have mechanic's lien rights even without a signed contract.

However, the absence of a written agreement can make disputes more complicated. Questions may arise regarding the scope of work, pricing, change orders, payment terms, or whether the work was authorized. As a result, documentation such as invoices, correspondence, delivery records, photographs, and payment records can become important evidence. That means, a contractor should have a written contract that complies with the HCSSA, CSPA, and HSSA.

Even if no written contract exists, Ohio's mechanic's lien statutes still require compliance with applicable notice, filing, and deadline requirements. Failure to satisfy those statutory requirements may result in the loss of lien rights regardless of the underlying agreement.