Lawyers who understand. Lawyers who help. Qualified, Established and Available. LESNEVICH, MARZANO-LESNEVICH, O'CATHAIN & O'CATHAIN LLC, is a firm dedicated to helping individuals with difficult legal problems: criminal charges, divorce, custody, injuries suffered from accidents, medical malpractice, product liability, domestic partnerships and civil unions, and grandparent's rights. Managing partner Walter A. Lesnevich describes the firm's commitment to its clients, "We care. We're there for you."