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Suit and Tie

Our Attorneys

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Teresa (Wumin) Sun, Esq. (Managing Attorney)

Managing Attorney

Attorney Sun is based in the San Francisco Bay Area, California, and previously worked at a prestigious boutique law firm in Northern California, where she successfully handled numerous cases for clients from China. She specializes in the following areas: business law and employment-based green card applications (EB-1A extraordinary ability, EB-1C multinational company executives and managers, PERM/EB-2/EB-3 advanced degree/skilled worker permanent residence applications, National Interest Waiver "NIW" and EB-5 investor immigration programs), temporary work visa applications (H-1B specialty occupation workers, L-1 intracompany transferees, O-1 extraordinary ability individuals, B-1 domestic employees, etc.), and family-based immigration green card applications.

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Attorney Sun is licensed to practice law in both California and New York, and is fluent in English and Mandarin Chinese.

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William Remo, Esq. (Of Counsel)

Family Law & Family Immigration Attorney

Attorney Remo has been practicing since 2021 and is a licensed California attorney based in the Bay Area. He has handled cases involving personal injury, family law, family-based immigration law, and other civil litigation matters. He primarily focuses on family law and family-based immigration law. Attorney Remo is a passionate and dedicated lawyer committed to helping those in need.

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Attorney Remo is licensed to practice law in California and is fluent in English, Tagalog, and Ilocano, which enables him to better serve clients from diverse cultural backgrounds.

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Charles A. Lucero(Of Counsel)

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Charles A. Lucero graduated with highest honors from the University of California, Santa Barbara, with a degree in History. Mr. Lucero holds a Juris Doctor (JD) degree from the University of California, Hastings College of the Law and is currently pursuing a Master of Laws (LLM) degree in Tax Law at the University of San Francisco School of Law. Mr. Lucero speaks fluent Mandarin and understands Russian.

In addition to his legal practice and running Lucero and Olson, Mr. Lucero is the co-founder of Calmei, Inc., founded in 2018 and currently cultivates thousands of bayberry trees in the Bay Area and surrounding regions. The bayberries are sold at the Bi-Rite Market in San Francisco and online through Weee!. Mr. Lucero is also a member of the California Rare Fruit Growers Association.

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Mario Mella, Esq. (Of Counsel)

Immigration Attorney

Attorney Mella brings over 22 years of extensive experience in immigration law. He previously served as an asylum officer at the U.S. Citizenship and Immigration Services (USCIS) and has also served as counsel for several nonprofit organizations in California. This unique background provides him with an insider's perspective and deep understanding of the immigration system.

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He is responsible for preparing labor certification applications as well as H-1B, EB-1, EB-2, EB-3, National Interest Waiver, and family-based applications, including 601 waiver applications. He manages various types of cases end-to-end (primarily PERM labor certification cases), providing high-level client support and communicating with client personnel (employees, managers, and HR professionals) to gather required information and documents for applications, while explaining complex immigration-related issues. His extensive practical experience and government background enable him to provide clients with unique insights and effective immigration solutions.

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Attorney Mella is licensed to practice law in California and is fluent in English.

Legal Consultant

Our firm provides a full spectrum of corporate legal services tailored to meet the evolving needs of domestic and international clients.

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