If an injured worker has to hire an attorney to help recover medical or vocational benefits (i.e. get a medical bill paid), then the workers’ compensation insurer/claims administrator pays the attorney’s fee.
If an injured worker has to hire an attorney to help recover wage loss and/or permanent partial disaiblity benefits, then the attorney is generally paid on a contingency basis. This means that the injured worker does not pay an attorney anything unless and until that attorney secures benefits on behalf of the injured worker. If there are no benefits recovered, then the attorney does not get paid.
Minnesota work comp laws regulate how much injured workers’ attorneys are paid. Attorneys representing injured workers who were injured after 10/1/13 are paid 20% of the first $130,000.00 in wage loss and permanent partial disability benefits recovered (up to $26,000.00).
You can read the statute governing payment of injured workers’ attorneys here: https://www.revisor.mn.gov/statutes/cite/176.081