Hanna Koval

Hanna Koval is an associate at McCathern Houston focusing on civil and commercial litigation. Before joining the firm, Hanna Koval practiced personal injury and property tax litigation in Texas. She began her legal career in Ukraine, where she worked as a trial attorney for five years, handling real estate, land use, construction, commercial and administrative […]

Mary Nan Huffman

Attorney Mary Nan Huffman is a seasoned Associate Attorney with 18 years of legal practice who joined McCathern’s Houston office in 2025. She joins Houston’s commercial litigation team, focusing her practice on contract disputes, employment disputes, and business fraud. Mary Nan previously specialized in criminal defense and has extensive trial experience. Mary Nan spent 10 […]