can the arbitrator's decision be appealed?
the purpose of arbitrating is to obtain closure. it is much harder to appeal or set aside the award of an arbitrator than it is a court of law.
part of the reason for that is that, in arbitration, parties elect to have a specific adjudicator decide their case + often waive a variety of appeal rights.
while arbitration awards have been successfully overturned in certain circumstances, that is difficult to do + is not something you should enter arbitration expecting to have happen.
if you have doubts about the decision that your arbitrator will make, it is probably best to address before the decision is rendered.