When you send the Request For Arbitration form you must include copies of all required documents, records and repair orders. Agreement. b. The arbitrator shall have the power to determine the existence or validity of a contract of which an arbitration clause forms a part.A forced arbitration agreement in which employees waived their right to participate in collective legal claims constituted an unfair labor practice. Arbitration provisions in employment agreements are generally considered controversial. A worker signs an employment contract while the employer points to the signature area. The Washington Supreme Court refused to enforce a mandatory arbitration agreement that was contained within an Employee Handbook. In June 2018, Washington enacted three laws concerning discrimination claims in the workplace. Exception for Binding Arbitration of Parenting Plans.