Sienna Borchardt

Sienna Borchardt is an Associate Attorney at Longdin Law Offices, where she focuses her practice on immigration law, family law, and criminal defense. She is dedicated to helping individuals and families navigate complex legal challenges with clarity and compassion, particularly in removal defense and immigration-related matters.

Sienna earned her Juris Doctor from Marquette University Law School in 2024, along with a Certificate in Alternative Dispute Resolution. She graduated summa cum laude from the University of Wisconsin–Milwaukee in 2020 with a Bachelor of Science in Film, Video, Animation, and New Genres, as well as a minor in Spanish, demonstrating both academic excellence and bilingual proficiency.

Before joining Longdin Law Offices, Sienna gained valuable legal experience through internships at Kids Matter, Inc., Legal Action of Wisconsin, and the Legal Aid Society of Milwaukee. These roles helped shape her client-first approach and strengthened her advocacy skills for underserved populations.

Licensed to practice in Wisconsin and before the Executive Office for Immigration Review (EOIR), Sienna represents clients in removal proceedings, adjustment of status, and a range of immigration petitions. She is also well-versed in the impact that family or criminal matters can have on immigration status and applies this knowledge to build strong, strategic defenses.

Sienna Borchardt approaches every case with diligence, empathy, and a goal of securing the best possible outcome for her clients. Her strong communication skills, legal expertise, and multilingual abilities make her a powerful advocate for those navigating the complex intersections of immigration, family, and criminal law.

With a commitment to justice and an eye toward creative solutions, Sienna continues to grow as a dedicated legal professional, supporting individuals across Wisconsin as they pursue stability and security through the legal system.

Law Office Affiliations

• Associate Attorney, Longdin Law Offices, LLC
• Member, State Bar of Wisconsin
• Member, Executive Office for Immigration Review (EOIR)

Licensed State

• Wisconsin

Education

• Marquette University Law School
  Juris Doctor (J.D.)
• University of Wisconsin – Milwaukee
  Bachelor of Science (B.S.)

Awards & Badges