Our Team

"We base our firm on the belief that our customers’ needs are of the utmost importance."

Elizabeth Yang


Elizabeth Yang (楊安立) has been practicing law since 2007 and specializes in Intellectual Property Law, including Patent, Copyright and Trademark Prosecution and Litigation; Business Law, including corporate entity formation, contract drafting, contract disputes, litigation; Family Law, including divorce, child custody, child support, alimony, and asset division; and Traffic Citations. She is fluent in Mandarin Chinese.

Elizabeth was admitted to the United States Patent & Trademark office in 2007. At the age of 19, she earned her Bachelor's degree in Electrical Engineering and Computer Science from UC Berkeley in two and a half years. Her IP practice is primarily focused on Intellectual Property litigation at the Federal District and before the United States Patent and Trademark Office (USPTO). Elizabeth's practice also includes complex business litigation, patent prosecution and trademark prosecution. 

In 2011, Elizabeth founded Yang & Wang, P.C., a boutique law firm that ultimately gave life to the Law & Mediation Offices of Elizabeth Yang.  Prior to starting her own practice, Elizabeth gained extensive experience at various international intellectual property law firms where her practice primarily focused on a variety of technologies, including electronics, hardware, software, variable data printers, fingerprinting sensors, data packet processing, network security systems, microprocessors, and automated telephonic systems along with IP Litigation. She is also experienced in drafting patent validity opinion letters, requests for reexamination, intellectual property licensing agreements and trademark consent agreements.

Elizabeth further has extensive experience dealing with family law issues involving child custody, child support, alimony, asset division, pre-nuptial agreements and post-nuptial agreements.  Being a mother of two young children , she understands and can relate to clients who are also undergoing emotional divorces. She has represented family law clients both efficiently and compassionately at various stages of litigation and trial.  Elizabeth earned her mediation certification in 2015 from the Los Angeles County Bar Association (LACBA) and has assisted many combative litigants in resolving their issues through mediation and alternate dispute resolution.

Prior to practicing law, Elizabeth worked for Raytheon Company as an electrical engineer designing radar systems for the B2 Bomber. She has also interned at NASA Jet Propulsion Lab, working as a team member on the main control unit of the Mars Exploration Rover.

In 2016-2018, Elizabeth was awarded the "Top 100 Civil Lawyers" award and the "Top 40 Lawyers Under 40" award by the National Trial Lawyers Association.  In 2017 and 2018, Elizabeth was recognized by Thomson Reuters Super Lawyers as a "Rising Star" ranking her in the top 2.5% of lawyers in California and also presented with the Lawyers of Distinction award, recognizing her as the top 10% of lawyers in the United States.

In 2017, Elizabeth published her first best-selling book, "The Big Secret" alongside Jack Canfield, author of the Chicken Soup for the Soul series.  In 2018, Elizabeth published her second book, "Stress-Free Divorce" to assist parties going through this very difficult time of their lives.

Christopher D. Lee

Associate Attorney

Christopher D. Lee earned his Bachelor of Law degree at the Law School of Tsinghua University in Beijing, China. He graduated from the University of Southern California, Gould School of Law in the year of 2015.

Before joining the firm, Christopher worked as a law and motion attorney, researching, writing and arguing his motions on a wide variety of civil and commercial matters. Christopher speaks English, Mandarin and Cantonese. ​

Lauren Sorsby

Associate Attorney

With a strong belief in the importance of community and civic responsibility, Lauren has always sought opportunities to extend a hand and lead through serving. Her passion for these values in turn led her to pursue a degree in Legal Studies at the University of La Verne.  In her time spent there, she competed with the varsity debate team and participated in many competitions at places including Claremont McKenna College, Yale University and The World Universities Debating Championship in Bangkok, Thailand. 

Throughout her undergraduate studies, Lauren volunteered at The Community Self-Help Center in Pomona, California where she serviced community members with regard to unlawful detainers and family law. In 2008, Lauren graduated with cum laude honors and returned to her alma mater to pursue a Juris Doctorate. She graduated from the University of La Verne College of Law in 2011 and has been a member of the California Bar Association since 2012.

Lauren is also a member of The Los Angeles and San Bernardino County Bar Associations.  She is an active member of the Social Justice Advocacy Project, and a board member of Allison Holdings, Inc.  She has over six years of legal experience with family law, estate planning and criminal law. 

Derrick M. Uhri

Associate Attorney

Derrick M. Uhri earned his Bachelor's degree in Political Science from UCSD and his Juris Doctorate from Chapman University, Dale E. Fowler School of Law in 2016. During law school, Derrick was a participant in the American Bar Association Section of Taxation fourteenth Annual Law Student Tax Challenge.

Prior to joining the firm, Derrick worked in another Irvine law firm representing clients in a variety of cases, including estate planning, contract drafting and litigation. Currently, Derrick handles family law and estate planning cases in the firm's Irvine office.

Michael Ahmadshahi

Of Counsel

Michael Ahmadshahi's area of practice is Intellectual Property Law including Patent Prosecution and Litigation, Trademarks, Copyrights, and Unfair Business Practices.

Prior to the practice of law, Mr. Ahmadshahi was a staff scientist at C.E. Niehoff & Co., a defense contractor which manufactures state-of- the-art generators for military vehicles. Mr. Ahmadshahi also held the position of Research Engineer with the University of California, San Diego in the areas of Optics and Mechanical Engineering, developing laser-based optical techniques for evaluation of advanced materials under high-impact dynamic loads.

Mr. Ahmadshahi is a member of the State Bar of California, and is admitted to practice before the United States Patent and Trademark Office. He is or has been a member of the American Bar Association, the Orange County Bar Association, the Iranian-American Lawyer Association, the American Society of Mechanical Engineers, Society of Experimental Mechanics, Optical Society of America, Society of Automotive Engineers, the American Society for Non-destructive

Testing, Association of United States Army, and the American Defense Preparedness Association.

Mr. Ahmadshahi has presented various papers and is the author and co-author of 16 peer reviewed publications which include the following: M. A. Ahmadshahi, Application of Sensors for Design Improvement, Electronics and Electrical Systems, 73-79, November 17-19, 1997; M.A. Ahmadshahi, Sridhar Krishnaswamy, and Siavouche Nemat-Nasser, Dynamic Holographic-Electronic Speckle Pattern Interferometry, Journal of Applied Mechanics, Vol. 60, No. 4, 866-874, December 1993; M. A. Ahmadshahi, Gray Level Transformation to Increase the Density of Interferometric Fringes, Applied Optics, Vol. 30, No. 17, 2382-2385, 10 June 1991; S. Nair and M. A. Ahmadshahi, Asymptotic Expansion and Influence Coefficients for Edge-Loaded Conical Shells, Studies in Applied Mathematics, 78:91-110, 1988.

In addition to his professional involvement, Mr. Ahmadshahi is also involved in cultural and community activities and provides pro bono legal services. He is or has been a member of the board of directors of non-profit organizations such as SIMORGH, a charity organization assisting children with cancer. He has also been involved in sports and outdoor activities. He is a long-distance runner and has completed twenty eight marathon races in Chicago, Los Angeles, Orange County, and San Diego.

Katherine P. Lee

Of Counsel

Katherine P. Lee is an experienced attorney who is dedicated to aggressively representing the interests and rights of her clients, which have ranged from individuals and families to non-profits and Fortune 50 companies. She has effectively negotiated settlements, thereby saving her clients the additional costs of litigation, but also has been through arbitration and trial when necessary to resolve matters with her clients’ ultimate objectives in mind.

She is proficient and professional in the courtroom as well as compassionate and caring towards her clients, including those unfamiliar with the legal process. She takes the time to listen and respond to their questions and concerns. For those more familiar with the legal process or busy with their own business affairs, she similarly provides case updates in an efficient and timely manner.

She currently serves as legal counsel for the national non-profit Project by Project.

Although she has previously worked for law firms in the Los Angeles area, she is also a licensed attorney in the State of New York where she was born and still has roots.

Katherine earned her Bachelor's from UC Berkeley and her law degree from Loyola Law School.

John Kim

Of Counsel

Mr. John Kim has more than 16 years of experience representing business and consumer clients in bankruptcy matters and commercial litigation in federal, state and bankruptcy courts throughout the country. He advises clients on creditors’ rights and remedies in relation to distressed companies, in and outside the context of bankruptcy proceedings, and in a wide range of sectors including financial services, energy, health care, real estate and utilities. He represents secured and unsecured creditors, creditors' committees, real estate developers, retail landlords and government agencies. Mr. Kim also consults and provides services on individual and corporate chapter 7 debtor bankruptcy filings in both contested matters and adversary proceedings.

Mr. Kim negotiates and drafts asset purchase agreements, disclosure statements, and plans of reorganization. He handles bankruptcy adversary proceedings and business litigation involving preferences, fraudulent conveyances, lender liability, non-dischargeablity complaints, and enforcement of subordination agreements. Mr. Kim is also experienced representing clients in matters involving construction defect claims and insurance coverage issues.

Prior to private practice, Mr. Kim was a Judicial Extern to the Honorable David P. Yaffe, Los Angeles Superior Court and the Honorable Dickran Tevrizian, Central District of California, United States District Court.


J.D., Loyola Law School, 2001, Order of the Coif, magna cum laude

B.A., University of California, Los Angeles, 1998, with honors

Katy Chen

Patent Agent

Katy Chen earned her master’s degree in chemical engineering from the University of Southern California in 2008.

She is registered to practice before the U.S. Patent & Trademark Office, and has experience representing a range of clients from high-tech institutions to start-up companies. She regularly handles technology areas in, engineering, mechanical devices, medical technology, and electrical devices. Katy is fluent in English and Mandarin. 

Trang Nguyen


Trang Nguyen is a paralegal at the Law & Mediation Offices of Elizabeth Yang. Ms. Nguyen assists the Irvine team with a variety of patent and trademark paralegal responsibilities. She provides administrative support to the office in preparation of legal documents for filling with the United States Patent and Trademark Office, and various projects in business and family law.

Ms. Nguyen graduated as an honored student of the Paralegal Program approved by the American Bar Association at Fullerton College. She also had a Bachelor’s Degree at California State University, Fullerton in Finance and Information System in 2014.

Prior to joining the Law & Mediation Offices of Elizabeth Yang, Ms. Nguyen volunteered as a paralegal at Legal Aid of Orange County to assist low income and senior clients with their legal needs. 

Contact Us

We are committed to providing the highest quality of service to our clients. If you have any questions or would like to schedule a free initial consultation, please feel free to contact us by phone or email.

Telephone: (877) 4-YANGLAW (877-492-6452)

Email: [email protected]


199 W Garvey Av., Suite 201

Monterey Park, CA 91754

555 S Flower Av., 51st Floor

Los Angeles, CA 90071

2102 Business Center Dr., Suite 130

Irvine, CA 92612

To speak with one of our attorneys today, contact us at

(877) 4-YANGLAW or email us at [email protected]

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