The law states in Washington and Oregon that the signatures of at least two directors is required for withdrawals from the association reserve account(s). Withdrawal requirements for other association accounts are usually set in the governing documents, but if they are not, the requirements can be established by the board.
The decision of whether the association should enter into a particular contract is made by the board unless the governing documents require owner approval, or unless the board has delegated the decision to an officer, committee, or manager.