Mn state law reqires that a person doing electrical work have a master’s license or be working under someone who has a master’s license. Law also states you must have a electrical contractor’s license and be bonded and insured. State law allows a person to wire his/her own residence without these requirements, but not a commercial establishment. State law does not state anything about the person doing the side job on being non-union or union. Lindy, word of caution, make sure you have it inspected because if somthing bad were to happen that was caused by electrical ,your liability insurance will cover. Good luck with your business adventure 