HRS §572D-2
How to make a valid premarital agreement
A premarital agreement must be written and signed by both people. It is valid even if one person does not give something in return. This section only sets the basic formal requirements.
spouses
The statute, as written — Formalities
A premarital agreement must be in writing and signed by both parties. It is enforceable without consideration.
LawTrove is not legal advice. The summary above is a computer-generated restatement — the authoritative text is the official version linked above.