The arbitrator is providing a service to both parties… acting as a private judge, essentially. Your attorney is providing a service to you as well… acting as your advocate and counsel. Both get paid pursuant to separate contracts.
The arbitrator’s pay is typically a “cost” that you have to pay. Your attorney may advance you that cost and then reimburse the advance on the back end of the case once the money is paid by the other side.
“Costs” (i.e., usually amounts paid to others to facilitate a case) are usually separate from “attorney fees” (i.e., amounts paid to your attorney for legal services provided).
The nature of how this works will depend on your fee agreement, which I have not seen, obviously. Typically, if you get a recovery of money, the attorney will be paid the attorney fees (probably 1/3 of the recovery) plus reimbursement for the advanced costs (arbitrator fees, photocopies, faxes, subpoenas, filing fees, postage, mileage, deposition transcripts, etc.).
It depends on your fee agreement whether the attorney takes 1/3 of the gross or 1/3 of the net recovery. My understanding is that 1/3 of the gross is typical.
Therefore, if the arbitrator costs $2,000, plus other costs are incurred at maybe a total of $1,000, then you have $3,000 in costs.
Assume your attorney fees are 1/3 of the gross recovery per your fee agreement.
Assume you have medical bills of $5,000 as a lien on your case.
Assume you recover $18,000 form the defendant.
Attorney fees = $6,000 ($18,000 / 3)
Costs = $3,000
Medical Bills = $3,500 (maybe the attorney can get the medical provider to reduce the lien)
Total deductions: $12,500
Total in your pocket: $5,500
If you recover nothing from the defendant, then the attorney fees would be $0, but you may still have to pay the $3,000 in costs advanced by the attorney… or the attorney might just write the costs off as a cost of doing business.