Mark Diehl Sullivan

Mark did a very good job of educating me in the process. He was instrumental in getting what I needed from Wyoming Worker's Compensation. He was very knowledgeable and provided fantastic arguments. He contacted me when said he would and conducted himself as nothing but professional. I think his pati...ence with me was more than exceptional. I questioned everything and he knew the answer or would find it for me. I would and have recommended his services to others.

Mark has served as my company’s legal counsel for the past five years. During that time he’s helped us successfully navigate a wide range of vexing legal issues including implementing our stock option plan. I find Mark exceptionally easy to work with- he’s sharp, responsive and, when necessary, har...d-nosed. Perhaps even more importantly, he knows how to rein-in my sometime irrational urge for legal confrontation when it’s not in the company’s best interest. I recommend Mark without reservation.

Mark's great advice, forethought, and actions helped my company quickly collect a debt from a delinquent client in a way that was firm, respectful, and effective. Because of Mark's intelligent approach and preparation for all contingencies in what was shaping up to be a very difficult debt collection..., we were able to avoid going to court or even threatening to do so. Mark is great to work with and a true professional. Thank you, Mark!

The case Mark handled for me and my husband was a breach of contract, fraud and racketeering case involving multiple plaintiffs against a modular homebuilder that had closed up shop, leaving us all with partially-completed but fully-paid-for homes. Mark's representation of us included a hearing in C...heyenne in which we were seeking a preliminary injunction freezing the defendants' assets which were in danger of being liquidated. Ultimately, thanks to Mark's expert advice, we elected to have him guide our case through mediation, and we successfully avoided going to court. Without Mark's tireless efforts, his impeccable professionalism, and--perhaps most importantly--his vision in bringing racketeering charges to bear in the case, our outcome would likely have been very different. We remain profoundly grateful for Mark's comprehensive evaluation of our complaint, his faith in the strength of our case, and the herculean effort he exerted on our behalf. We recommend him wholeheartedly and without reservation.