You do not need an attorney to do this (although its usually a good idea). The State of Utah has forms for this and they can be accessed at the link below. I believe that the Divorce forms have an option for Annulment but I'm not sure.
Yes, you should report the attorney to the Utah State Bar Consumer assistance program: http://www.utahbar.org/public/consumer_assistance_program.html All Requests for Assistance forms received by the Utah State Bar are initially screened by the Office of Professional Conduct. Matters which do not rise to the level of an ethical complaint may be forwarded to the Consumer Assistance Program (CAP). The CAP Attorney then reviews the Request for Assistance form and contacts the consumer to fully...
Try calling Matt Lewis at my firm: 801-323-3338