Sean C. Marcum

Sean C. Marcum is the Managing Partner at O’Brien Law Group, a full-service immigration law firm based in Louisville, Kentucky. For over 15 years, he has dedicated his practice to helping individuals and families navigate the complexities of immigration law and criminal defense. Known for hard work, honesty, and genuine dedication, Sean has earned the trust of hundreds of clients across Central Kentucky.

Sean earned a B.A. in Spanish from Brigham Young University in 2004 and a J.D. from the University of Kentucky College of Law in 2007. This strong academic background, paired with practical experience, provides a solid foundation for handling a wide range of cases with care and diligence.

Sean’s dedication to immigration law and criminal defense is rooted in a commitment to providing honest, practical, and thorough representation. Known for clear communication and genuine care, he works closely with individuals and families to build strong cases and pursue the best possible results. The practice covers all aspects of immigration law, including visas, green cards, naturalization, asylum, and deportation defense, along with related criminal defense matters. Clients appreciate Sean’s thoughtful strategies and relentless work to protect important rights and secure brighter futures.

As an active member of the Kentucky Bar and the American Immigration Lawyers Association (AILA), Sean also dedicates time to volunteering at immigration clinics throughout the Louisville area, providing trusted guidance to those who need it most.

Clients working with Sean C. Marcum can expect honest counsel, diligent representation, and a steadfast commitment to achieving the best possible results in every case. This dedication makes Sean a trusted advocate for the immigrant community and beyond in Kentucky.

Law Office Affiliations

• Managing Partner, O’Brien Law Group
• Member, Kentucky Bar Association
• Member, American Immigration Lawyers Association

Licensed State

• Kentucky

Education

• University of Kentucky College of Law
  Juris Doctor (JD)
• Brigham Young University
  BA in Spanish

Awards & Badges