An International Immigration, Business, Estate Planning and Tax Firm

Serving A Global Clientele With Skill And Care

Our law firm provides quality representation and dedicated client service to businesses, individuals and families across the world.

Practice Areas


If you want to live and work in the United States, we can help. We help our clients in the full range of family and business immigration matters.


Our attorneys provide the full complement of business and tax services to companies and entrepreneurs in all types of industries.


We specialize in Wills and Estate


Our firm also provides services in divorce/legal separation, guardianship application, adoptions, conservatorships, Prenup agreements, and marital settlement agreement.


Our attorneys also have over 10 years of experience of trademark law helping clients with their trademark needs.

Contact Us Today

Working Hard To Make A Difference

Earning a visa or green card involves many challenges. Legal matters involving business or taxes also have the potential to create many problems. If you face any of these situations, you will need a lawyer who can help you navigate the legal system. D & T Law Corporation. While based in Irvine, we represent clients across California and internationally.

The Insight And Experience You Need

The vast majority of our clients are individuals and families from China or Taiwan who want to live and work in the United States. Our lawyers, Daisy Zhao and Allen Tsai, were born in China and Taiwan, respectively, prior to moving to the United States. We understand exactly what you are going through. We speak Cantonese and Mandarin, and can be at your side as we help you transition to living in the United States.

Whether you have immigration needs, business needs, tax needs or some combination, we will do our best to provide you with a good client experience. We understand that we have the opportunity to make a critical difference in your life. This drives us to provide our clients with the highest quality of representation.

Contact Us Today.

Call 949-214-4913 or complete our email form to schedule your initial consultation. We can meet with you in person, over the phone, over email or even over Skype.

We speak Mandarin and Cantonese.

Contact The Firm

Irvine Location: Irvine Business Center

7700 Irvine Center Drive
Suite 800
Irvine, CA 92618

Los Angeles Location

9465 Wilshire Blvd
Suite 300
Beverly Hills, CA 90212

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We Accept Credit Cards

American Express