The role of an arbitrator is to be a neutral evaluator. This includes reviewing the case thoroughly and considering whether the arguments made by each party are supported by a preponderance of the evidence. 

An arbitrator must resolve the dispute as it is presented by the parties and should never add arguments, enter pleadings, raise exclusions, request a deferment, or dispute damages on behalf of any party to the arbitration case. Arbitrator consideration of evidence is limited to items that are listed and submitted by each party. 

Please take a moment to review 3-5 below, from Arbitration Forums, Inc. Rules, for clarification on what an arbitrator may consider when deciding a case: