Under what condition can a contractor file a lawsuit for payment in Arizona?

A contractor in Arizona can file a lawsuit for payment when they are licensed on both the date the contract was entered into and the date the alleged cause for action occurred. This is a crucial requirement under Arizona law, as it ensures that only contractors who are appropriately licensed can seek legal recourse for payment. If a contractor is not licensed at these critical times, they may be barred from enforcing the contract or bringing a lawsuit, as licensing is intended to protect consumers and maintain industry standards.

The other conditions presented do not meet the legal criteria for filing a lawsuit for payment. Completing the work or receiving a partial payment does not necessarily qualify a contractor to file suit unless they fulfill licensing requirements as stated in the statutes. Additionally, filing for bankruptcy typically changes the financial dynamics and obligations rather than providing grounds for a contractor to seek payment through litigation.