Pence and MacMillan LLC


Pence and MacMillan now offers mediation services

Our skilled and seasoned mediators are available to mediate all matters including
personal injury, real estate, trust administration, business complications and civil actions
in Laramie, Cheyenne, Sheridan, and Lander, Wyoming.

Our talented mediators are:


Retired Judge Jeffrey A. Donnell spent 19 years litigating cases across Wyoming, and the next 20 years on the bench. He has succeeded in mediating numerous cases. More >

Devon P. O'Connell

Devon O’Connell has practiced in the areas of family law and civil litigation for 17 years. She obtained her 40 hour mediation training from CDR Associates in Boulder, Colorado. She was accepted into (and successfully completed) the Advanced Mediation training at the Harvard Law School Program on Negotiation. The training specialized in mediating complex disputes. She has extensive litigation and mediation experience across Wyoming. More >

Eric R. Boyer

Eric R. Boyer has engaged in criminal and civil litigation for 22 years while also maintaining a transactional practice. His practice goal of helping obtain the best results with a minimum of time and expense is fostered by his ability to mediate cases statewide. Eric successfully completed the intensive 40-hour Mediating Disputes course at the Harvard Law School Program on Negotiation, focusing on how to help clients most productively resolve disputes. Coupled with his litigation and business experience, this type of mediation-based dispute resolution background gives Eric the tools to successfully help resolve disputes for clients throughout Wyoming. More >

My client’s case was individualized to Devon and my client felt heard and understood. Mediation solved all the outstanding problems and kept us from a court battle where satisfaction would not be likely found. We are glad we chose the mediation route instead of trial. Devon made a difference in my client’s life and she was so pleased with how beneficial and smooth the process was.
– Laramie Attorney

Jeffrey A. Donnell, Devon P. O’Connell, and Eric R. Boyer are trained, seasoned, and ready to mediate any conflict.
We are here to assist in resolving differences, big and small.