Except as otherwise permitted by rule or other law, all funds, including cash, received and accepted by an attorney or law firm in this State from a client or third person to be delivered in whole or in part to a client or third person, unless received as payment of fees owed the attorney by the client or in reimbursement for expenses properly advanced on behalf of the client, shall be deposited in an attorney trust account in an approved financial institution. This Rule does not apply to an instrument received by an attorney or law firm that is made payable solely to a client or third person and is transmitted directly to the client or third person.