Yi Sun & Associates LLC

Yi Sun is Awesome lawyer , always honest, works hard , always understandable. Highly recommend

Wonderful service! Great!

Yi Sun is an exceptional lawyer, known for her outstanding articulation, meticulous attention to detail, and remarkable intelligence. Her eloquence and goal-oriented approach make her a standout in her field. She's truly one of the best, earning top marks from clients and peers alike.

I must recommend this attorney for immigration purposes. I had consulted previous attorney for I751 and got RFE but Yi Sun explained and prepared documents in excellent way that I got approved after documents being received to USCIS. one of the best attorney in St. Louis

After my stepfather passed away, my mother went through a very difficult period, and Yi Sun provided invaluable assistance throughout the probate process, helping my mother recover from the grief of losing a loved one. I highly recommend her for her professionalism, expertise, and trustworthy service!

Yi was an absolute pleasure to work with, and was phenomenal in guiding us through the marriage green card process! Would highly recommend her service!

My wife and I would like to thank Yi for all the help she has done for us over the past couple of years. She has been completely professional and attentive through the whole process in my wife getting her visa and green card. Yi has answered every question, email, concern that we ever have had through the entire deal. We have the upmost trust and appreciation for Mrs Sun. Yi will be handling all our attorney needs in the future.

Working with Attorney Sun was such a positive experience. She’s not only professional but also incredibly thoughtful and attentive. She always pointed out potential issues before they became problems and made it clear exactly what I needed to provide. Her communication was kind, timely, and easy to follow, and she consistently finished tasks ahead of schedule. Thanks to her hard work, my case was completed quickly and approved without any issues. I’m so grateful for her support and would highly recommend her to anyone!

I had my immigration case done here! My lawyer, who is also the founder of this firm, is great! She has great experiences in this field including interpreting, getting updated in the USCIS requirements and policies, and help me customize my materials according to my personal situations. She helped me prepare forms and supporting materials in great detail. With all those back and forth emails between us, she prepared my case correctly in every detail with lots of convincing evidence added. Also, she is responsive and proactive in giving suggestions for my final interview in USCIS office. Overall she is very reliable in handling my case from start to end. She is very aware of how to tactically getting prepared for any situations in immigration case. Lucky for me that I chose Yi Sun as my lawyer!

My wife and I recently worked with Yi Sun to obtain her green card. Shes incredibly knowledgeable, professional, and easy to work with. Our experience was amazing and we plan to work with her for our future legal needs in immigration. Would highly recommend.

If you’re looking for a great lawyer, I highly recommend Yi Sun! She helped me with the Green Card and the Employment Authorization Document process. We submitted everything in March (2025) got the work permit approved in May(2025) , and had our Green Card interview in June (2025). The green card was approved on July 2nd (2025) Yi Sun is professional and honest, and also a truly kind, friendly, and caring person. She always takes the time to answer every question with patience and clarity. Thank you so much, Yi Sun!

I would like to express my sincere gratitude to attorney Yi Sun for her exceptional legal assistance. Her professionalism, expertise, and remarkable patience throughout the entire process made a significant difference in my case. Yi took the time to thoroughly explain complex legal matters in a way I could understand, always responded promptly to my questions, and demonstrated genuine care about my situation. Her attention to detail and strategic approach were invaluable. I highly recommend Yi Sun to anyone seeking a dedicated and skilled lawyer who truly puts clients' interests first. Thank you, Yi, for your outstanding service!

I saw high ratings for this law firm online, so I gave them a call. After meeting them, Attorney Sun's professionalism convinced us to sign a contract immediately. During the marriage-based green card application process, Attorney Sun provided meticulous and professional service, making our application process easy and giving us confidence. From submitting the documents on January 30th to receiving the green card on June 20th, the process was seamless! Thank you, Attorney Sun, for your help!

I had an excellent experience working with Yi for my green card application. Thanks to their expertise and dedication, my case was handled smoothly and efficiently, and I received my green card in just 8 months, much faster than I expected! She is always responsive, explained every step clearly, and made the process stress-free. I highly recommend Yi to anyone needing reliable and professional immigration assistance.

I am incredibly grateful to Attorney Yi Sun for helping me. She is not only highly knowledgeable and professional, but also truly cares about her clients. Throughout the entire process, she was patient, attentive, and always kept me informed. Her dedication and expertise gave me peace of mind during one of the most stressful times in my life. As one of the best Chinese attorneys in the Missouri area, she understands both the legal system and the cultural nuances that matter to clients like me. I highly recommend her to anyone in need of a skilled and trustworthy lawyer. Thank you again for everything you’ve done for me!

I highly recommend Attorney Sun Yi! She is not only professional, but also very approachable and patient. Throughout the green card application process, she meticulously helped me prepare all my documents and provided clear guidance at every step. Whenever I asked questions, she responded promptly and patiently, which put me at ease. With her help, my green card application was successfully approved in a short period of time. I am truly grateful to her! If you are looking for a trustworthy immigration attorney, I highly recommend Attorney Sun Yi!

Grateful to Ms. Sun for her diligence and dedication to my family's case. She is knowledgeable, thorough, compassionate and personable. She is extremely responsive and makes herself available for any questions or concerns her clients may have.

It is quite rare in my opinion to come across someone who really cares about her job, and her clients. Ms. Yi Sun was with us all the way, making follow up calls and emails, updating us at timely intervals and just reassuring us every step of the way. She was with us from start to finish, and for that we are forever grateful. If you are in need of legal assistance, look no further, she is truly one of the best at what she does.

Yi Sun helped us through the process of applying for a green card. She made the whole process straightforward. She was always able to provide clear solutions to whatever questions we had.