Calleigh Olson

Peter McClenahan is at home in the courtroom. A skilled and dynamic trial lawyer, Peter’s practice focuses on personal injury, complex business and civil litigation and professional malpractice. In 2013, Peter was recognized for obtaining two of the top ten largest personal injury jury verdicts in the State of Colorado that year. Peter’s litigation background is extensive, and he has learned his craft from some of the best. Prior to joining Ogborn Mihm, Peter led a trial team of a...

Jessica R. Diaz is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. Jessica R., who practices law in Denver, Colorado, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jessica R. is held by other top lawyers in the same geographic and legal practice area.

David D. Powell, Jr. is a partner in the firm’s Denver office, focusing his practice on employment and commercial litigation. Before co-founding the firm with his colleagues in 2023, David served as a Deputy Attorney General in the Colorado Attorney General’s Office, managing the eight separate legal units comprising the State Services Section. In this role, he oversaw those responsible for representing the state’s key elected officials and providing legal services in the ar...

Mari Perczak is the co-practice group leader of the Construction Defects department at Burg Simpson. She and her department have achieved Tier 1 status by US News and World Report, which is the highest-ranking available. Ms. Perczak has more than thirty years of experience as a Colorado trial lawyer and has successfully handled many large construction defect cases for Colorado homeowners and homeowner associations. In 2020, Ms. Perczak was lead trial counsel in a lengthy arbitration where she...

Pat Ridley represents individuals and entities in criminal, regulatory and civil matters involving significant risk to liberty, financial and reputational interests. A Fellow of the American College of Trial Lawyers, Ridley has served as lead trial counsel in more than 75 jury trials, has second chaired dozens of jury trials and trials to the court. He has tried cases involving securities fraud, tax fraud, computer fraud, mail fraud, bank fraud, congressional redistricting, Ponzi schemes, bre...

Ashley advocates for outcomes that enable families to make the smoothest possible transition during an otherwise stressful time of life. She is committed to seeking peaceful resolutions while also zealously advocating for her clients. Whether clients are going through a divorce, custody dispute, financial disputes, or any other family law matter, it is Ashley’s goal that her clients feel as though their issue has been resolved with dignity. While not all cases can be resolved outside of...

Marcie was born in Greeley, Colorado in 1965. She grew up in Cody, Wyoming and attended Chadron State College in Nebraska where she majored in Criminal Justice. Marcie graduated from the University of Denver College of Law in 1990 and moved to Oregon. She practiced in Oregon for 12 years where her practice initially included creditor's rights and commercial litigation. She then moved into the areas of elder law, estate planning and administration before moving back to Colorado in 2001. Marcie...

Sue Schaecher's practice has been dedicated to representing employers in labor and employment-related matters since 1984. She represents employers in bench and jury trials and appeals in state and federal courts, arbitrations, mediations, proceedings before state and federal administrative agencies, and government audits. She also advises employers involved in investigations, drafting policies and negotiating agreements. Sue provides advice and counsel to employers of all sizes from a variety...

Duncan focuses his practice on difficult and complex civil litigation and family law matters. He has significant experience in a variety of fields including construction defect, insurance, real estate and commercial litigation. He also assists with complicated domestic relations matters, and is especially useful in complicated property situations, or when there are concurrent civil lawsuits, receiverships, business torts or partnership dissolutions.Duncan’s work has led him to represent...

David G. Palmer has more than 30 years of trial and appellate experience throughout the Rocky Mountain region, Texas and California, including numerous multi-week jury trials involving claims under federal and state antitrust laws, securities and commodities laws, allegations of civil or criminal fraud, conspiracy, RICO, class actions and claims under federal environmental statutes. These representations and trials have involved parties engaged in the energy, food and beverage, financial and ...