Answer:
by Randy Carey:
The remaining funds in the account should have been disbursed according to the dissolution provisions in the entity's organizational documents. Cutting them a check made payable to the business is not the answer. There is no way for it to be negotiated.
Answer:
by Ken Golliher:
Ditto. The account should have been closed by payment of checks issued by the business, probably to its owners.
The banking practice of closing an account with a check payable exactly the way the account is titled is sound, but it simply doesn't apply if the owner no longer exists.