Catherine O'Sullivan, Esq.

Catherine O'Sullivan headshot

Catherine O'Sullivan, Esq.

Attorney
catherine@thehalpernlawfirm.com

Our Attorney, Catherine O’Sullivan, is licensed in Pennsylvania and Colorado with a strong foundation in legal research, writing, and appellate analysis. She clerked for the Colorado Supreme Court, where she supported judicial decision-making, assisted with drafting opinions, and managed complex casework. Catherine earned her Juris Doctor in 2024, serving as an editor for a law review and publishing scholarship on constitutional interpretation. She brings a thoughtful, detail-oriented approach to every case and is passionate about advocacy, ethics, and community service. Outside of her legal work, she enjoys hiking, horseback riding, and adventure travel.