Attorney Fees. If any suit, action or arbitration proceeding is filed by any party to enforce this Agreement or otherwise with respect to the subject matter of this Agreement, the prevailing party shall be entitled to recover reasonable attorney fees incurred in preparation or in prosecution or defense of such suit, action or arbitration proceeding as fixed by the trial court, or the arbitrator(s) and if any appeal is taken from the decision of the trial court or the arbitrator(s), reasonable attorney fees as fixed by the appellate court.