HRS §656-2
What counts as proof of payment for a written agreement
This section says that when a written agreement is required, the reason or payment behind it does not have to be written down. You can prove the reason or payment using other legal evidence, like emails, messages, or testimony.
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The statute, as written — Consideration need not be in writing
The consideration of any such promise, contract, or agreement, need not be set forth, or expressed, in the writing signed by the party to be charged therewith, but may be proved by any other legal evidence. [CC 1859, §1054; RL 1925, §2666; RL 1935, §3901; RL 1945, §8722; RL 1955, §190-2; HRS §656-2]
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