There is no set time limit. The length of the review process tends to vary with the complexity of the complaint. Some reviews move very quickly, others take months, some have taken years. Recent changes in procedures and technology have served to speed the process up substantially.
The Board receives some complaints that do not lead to action against doctors of chiropractic. The Board cannot take action against a doctor of chiropractic unless there is sufficient evidence to show that the doctor of chiropractic violated Minnesota's Chiropractic Practice Act and related Administrative Rules. The Board must thoroughly review each complaint before it takes any action.
There are no costs for filing a complaint. The costs for review and resolutions of complaints are borne by the license fees of the practitioners, and to some degree by fines paid by the specific practitioner.
Filing a complaint will not preclude other legal action you choose to consider.