About
Ilisja Duffy is a highly regarded immigration and family law attorney who brings fierce dedication and clarity to every client she represents. As a leading advocate at one of South Dakota’s most respected firms, she consistently delivers strong results through thoughtful legal strategy and confident courtroom presence. Her work empowers clients navigating difficult legal transitions.
With a solid legal foundation, Ilisja has earned a reputation for excellence in handling complex immigration and family law matters. She guides clients through green card applications, deportation defense, and family-based petitions with knowledge and empathy. Her background ensures each case is approached with both precision and personal care.
Ilisja represents clients in high-conflict family law matters, including divorce, child custody, and child and spousal support disputes. With a balanced yet assertive approach, she offers steady guidance during emotionally charged legal battles. Her work is grounded in a commitment to protecting families and preserving each client’s dignity throughout the family law process.
Clients trust Ilisja not only for her results but for her unwavering commitment to their rights and well-being. At Duffy Law Firm, she exemplifies the firm’s reputation for strength, integrity, and bold representation. She ensures that each individual who walks through the firm’s doors receives the respect, focus, and advocacy they deserve.
Ilisja Duffy continues to uphold the high standards of Duffy Law Firm, a premier legal institution renowned for its client-first ethos and trial-tested experience. Through her work in immigration and family law, she reinforces the firm’s mission: standing up for those in need with skill, compassion, and relentless dedication.
Law Office Affiliations
- Partner, Duffy Law Firm
- Member, State Bar of South Dakota
Licensed State
- South Dakota
Awards & Badges

- Alimony
- Child Custody
- Divorce & Separation




