Do I need to send a prompt payment demand notice before pursuing legal action against a customer under OH prompt payment laws?
No notice is required. However, Ohio's prompt payment law only applies to subcontractors, suppliers, and other lower-tiered contractors. Additionally, the law only applies in the event the owner has made payment to the general contractor, and that payment is withheld from the lower-tiered contractor.
In the event you or your company fit in that situation, it appears you have a claim for prompt payment act damages, which can include 18% interest as well as attorney fees.