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Jack C Sung
About Jack
Biography
Immigration attorney in Los Angeles, San Fernando Valley, Inland Empire, San Bernardino, Riverside and Orange County
Jack C. Sung, Principal Attorney, is an immigrant himself and understands how overwhelming the immigration and visa process may be. Since he started JCS Law Offices in 2007, he and his experienced staff have been providing clients with personalized immigration services. Mr. Sung believes clients should have updates on their cases and direct access to current immigration law. If you call, email, or text JCS Law Offices, Mr. Sung will personally respond to your inquiry within 24 hours. His goal is to keep clients informed so that they can make the right choices.
Mr. Sung is a graduate of Southwestern Law School in Los Angeles, CA. At Southwestern, he distinguished himself by receiving 3 CALI Excellence Awards for achieving the top grades in Contracts, Business Associations, and Sexual Orientation Law. He was also the Associate Editor for Southwestern’s Journal of Law & Trade. During law school, Mr. Sung was already a proponent of immigrant rights as he was an active volunteer with the Los Angeles County Bar Association’s Immigration Legal Assistance Project. He also authored a published article in Southwestern’s Journal of Law and Trade where he argued for giving undocumented workers all the rights and remedies under the National Labor Relations Act. Mr. Sung is also fluent in Mandarin and proficient in Japanese.
Currently, Mr. Sung is an avid volunteer attorney with the Los Angeles Executive Office of Immigration Review Pro Bono Attorney Panel. He was recently nominated for the Public Service Attorney of the Year Award by Los Angeles County Bar Association.
Jack C. Sung's Volunteer Work:Los Angeles Executive Office of Immigration Review Pro Bono Attorney Panel
Los Angeles County Bar Association’s Immigration Legal Assistance Project
State Bar of California
Los Angeles County Bar Association Immigration Law Section
Taiwanese American Lawyers Association (台美律師協會)
American Immigration Lawyers Association
Nominated, Public Service Attorney of the Year Award by Los Angeles County Bar Association
Author, Killing Two Birds With One Stone: Giving Undocumented Workers All the Rights and Remedies Under the National Labor Relations Act Deters Employers from Hiring and Exploiting Them, 13 SW. J.L. & Trade Am. 155 (2007).
Associate Editor, Journal of Law & Trade in the Americas (2006-2007)
Staff Member, Journal of Law & Trade in the Americas (2005-2007)
CALI Excellence Award, Contracts
CALI Excellence Award, Business Associations
CALI Excellence Award, Sexual Orientation Law
Honorable Senior Judge Takasugi in the 9th Circuit Federal Court
Los Angeles City Attorney’s Office
Los Angeles District Attorney’s Office
Practice Areas
1
Practice Area
Immigration
100%
20 years | 2,500 cases
Fees and Rates
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Chat withLicenses
Licensed in California for 18 years
State: California
Acquired: 2007
No misconduct found
Location
JCS Immigration and Visa Law Office
2975 Wilshire Blvd. Suite 352, Los Angeles, CA, 90010
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Jack C Sung's Reviews
Avvo Review Score
829 Client Reviews
Filter Avvo Reviews (829)
Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.
Practice Areas
Immigration (600)
Lawsuits & Disputes (4)
Employment & Labor (3)
Family (3)
Marriage & Prenuptials (2)
Appeals (1)
Bankruptcy & Debt (1)
Business (1)
Corporate & Incorporation (1)
Criminal Defense (1)
Divorce & Separation (1)
Domestic Violence (1)
Education (1)
Ethics & Professional Responsibility (1)
What Clients Mention
Practice Area Knowledge (371)
Recommendation (213)
Responsiveness (211)
Case Results (151)
General Knowledge (151)
Professionalism (148)
Communication Style (140)
Character & Conduct (71)
Advocacy (43)
Trustworthiness (42)
Cost of Services (30)
Free Consultations (29)
Compassion (22)
Staff & Support (22)
Punctuality (3)
Payment Plans (1)
Showing 1 - 5 of 600 reviews | Immigration
Posted by Scott | August 20, 2026
Professional view and valuable comment
宋律師提供及時的回覆、專業的看法與全面的分析，同時提供應準備及審視的文件細節，很幸運的就在得到宋律師的意見後過了幾天，就收到宣誓通知，已完成宣誓成為公民！
Posted by anonymous | August 10, 2026
綠卡申辦
宋律師非常熱心且專業。他總是很仔細地聆聽我們在移民簽證方面的各種問題，包括 F-1、OPT、O-1、I-140 及 I-485，並根據我們當下的實際情況，耐心分析不同選項，提供最適合我們的建議與解答。 整個過程中，宋律師都非常有耐心，也願意花時間釐清我們的疑問，讓我們在複雜又漫長的移民過程中安心許多。非常感謝宋律師一路以來專業又熱心的協助，真心推薦給有美國移民或簽證相關需求的人！
Posted by Lena | August 05, 2026
CR1 approval
Jack has been very professional and helpful throughout the entire visa process. Highly recommended!
Posted by anonymous | July 25, 2026 | Hired Attorney
Getting visa approval
The attorney helped me get through an RFE and get a visa approved with a tight deadline, which was in 3 weeks. They were extremely helpful and professional. Would definitely recommend!
Posted by Bandana | July 22, 2026 | Hired Attorney
H1b Application
I worked with Jack Sung on my H1B visa application after it had been previously denied, and I couldn’t be happier with the outcome. He took the time to understand exactly why my case was denied before, addressed those issues head-on, and rebuilt my application with much stronger supporting documentat...
Jack C Sung's Lawyer Endorsements
"I have known Jack professionally for nearly 6 years. Jack, in addition to being highly likable, is a resourceful immigration attorney. I recommend and endorse him without reservation."
"Jack is my go-to Immigration reference. We have worked together on some cases and he has even done some cases for my own family members. He is extremely knowledgable, very accessible by email/phone/chat, and always responds quickly and swiftly to any question. He is multi-lingual and extremely capable of juggling many things at once, which is what an immigration attorney has to do. He's great!"
"I have known Jack for about a year through an online legal forum. He's very knowledgeable about any immigration law issues. What distinguishes him from many other practitioners is that he's very passionate about his practice area (immigration) and committed to excellent client service. I have seen him actively participating in local communities and answering any questions about immigration law without reservation. I highly recommend him!"
"Jack Sung takes the time to personally interact with his clients. He offers free consultations and directs new callers directly to his cell phone, even after normal business hours. He is patient and cares about his clients. I highly recommend him for any immigration issue."
"I endorse this lawyer."
"I endorse this lawyer."
"Jack is highly motivated and energetic. He genuinely cares about his clients and is sympathetic to their needs. He is also very knowledgeable about immigration law and its application to individual cases."
"Jack cares so much about his client that he used to take calls from clients at all hours. I always see him at different bar association functions and seminars, learning and sharing."
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Experience
Honors
2018
Client's Choice, Avvo
2007
Public Service Attorney of the Year, Criminal Courts Bar Association Los Angeles
2007
Contracts, CALI Excellence for the Future Award
2007
Business Associations, CALI Excellence for the Future Award
2007
Sexual Orientation LAw, CALI Excellence for the Future Award
Work Experience
2012 - Present
Vice President, Taiwanese American Lawyers Association (TALA)
2007 - Present
Principal Attorney/Owner, JCS Immigration and Visa Law Office
2007 - 2013
Volunteer Attorney, Los Angeles Executive Office of Immigration Review Pro Bono Attorney Panel
2007 - 2013
Volunteer Attorney, Los Angeles County Bar Association's Immigration Legal Assistance Project
2006 - 2007
Law Clerk, Los Angeles County District Attorney's Office
2006 - 2007
Law Clerk, 9th Circuit Federal Court Of Appeals
2005 - 2006
Law Clerk, Los Angeles City Attorney's Office
Associations
2008 - Present
Taiwanese American Lawyers Associationmember
2007 - Present
Los Angeles County Bar AssociationMember
2007 - Present
American Immigration Lawyers AssociationMember
Sample of Legal Cases
Saudi Arabia Gay Client Seeking Asylum in the U.S.
Asylum Approval in 90 days
Education
2007
Southwestern University School of Law
Juris Doctor
2003
University of California - Irvine
Undergraduate
Speaking Engagements
2013
Southwestern Legal Career Seminar
Legal Career Seminar
2013
LGBT Immigration Seminar
Same-Sex Marriage Immigration
2013
Community Legal Seminar
Immigration Law
Publications
2007
Southwestern Journal of Law and Trade in the Americas
Killing Two Birds with One Stone: Giving Undocumented Workers All the Rights and Remedies Under the National Labor Relations Act Deters Employers from Hiring and Exploiting Them
Languages
Mandarin
Chinese, Min Nan
English
Activity
Legal Answers
Legal Answers
Q&A
Travel on an NTA (notice to appear) pending issuance
29 Oct 2010
Q&A
Early walk in biometrics, can this be a problem?
20 Oct 2010
Q&A
I485 / I130 Medical Exam: Marijuana Use An Issue?
23 Nov 2008