HRS §560:6-108
Bank protection for paying out a shared account
Banks can offer shared accounts just like single-owner accounts. They can pay out the account to any owner who asks, without checking where the money came from or what it will be used for. The bank does not have to investigate these things.
financial institutions
The statute, as written — Financial institution protection; payment on signature of one party
Financial institutions may enter into multiple-party accounts to the same extent that they may enter into single-party accounts. Subject to the provision of sections 236D-12 and 560:6-107, any multiple-party account may be paid, on request and according to its terms, to any one or more of the parties. A financial institution shall not be required to inquire as to the source of funds received for deposit to a multiple-party account, or to inquire as to the proposed application of any sum withdrawn from an account.
Sections this one refers to
§236D-12 Who is responsible for unpaid estate taxes before property is handed over
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