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People in Team Meeting



Tony M. Chang

Mr. Chang is the Managing Executive at Castellan Law Group, APC.  Mr. Chang has substantial experience in corporate and real estate transactions.  Mr. Chang received his Juris Doctor degree from UC Berkeley School of Law.

After obtaining his law degree, Mr. Chang went to work as an Associate with Cravath, Swaine & Moore, LLP in New York, where he represented clients in numerous corporate transactions, including, among others:  $1.75 billion private offering of 8% convertible preferred stock by Lucent Technologies, Inc.; $424 million secondary offering by KKR of the Willis Group Holdings Limited; and $84 million initial public offering by Stelmar Shipping Limited. At Cravath, Swaine & Moore, LLP, Mr. Chang also had the opportunity to be part of a team of attorneys that defended the nation’s top investment banks in the infamous Enron litigation matter.

Mr. Chang left Cravath, Swaine & Moore, LLP to found his current firm.  At Castellan Law Group, APC, Mr. Chang heads the firm’s business transactions practice area.  His work on behalf of many of the firm’s corporate client includes many types of business and real estate transactions.

Mr. Chang also advises and represents business and private clients in collection matters. Mr. Chang is trusted by clients across California to help them recover the money they are owed for their goods and services.

Frank C. Lin

After obataining his Juris Doctor degree from the University of California, Berkeley, School of Law (Berkeley Law) in 2000, Mr. Lin began practicing corporate law with Mitchell Silberberg & Knupp LLP, a premiere Los Angeles-based law firm with offices in Washington, D.C. and New York, where Mr. Lin represented corporations and other business organizations in numerous private and public offerings of equity and debt securities totaling over $20 billion.

Mr. Lin has also represented emerging growth businesses, small to middle market entrepreneurial clients and nonprofit organizations in a wide range of industries, including apparel, e-commerce, education, food & beverage, health professionals, import and export, logistics and transportation, mortgage lending, restaurants, retail sales, technology, transport and logistics and wholesaling.  Mr. Lin’s experience includes mergers and acquisitions, structured finance, corporate reorganizations, corporate governance and regulatory compliance matters, commercial lending and franchising.

Currently, Mr. Lin also serves as the Chief Legal Counsel of an emerging property management company headquartered in Orange County which manages a diverse portfolio of over 50 multifamily, retail and office properties. 

At Castellan Law Group, APC, Mr. Lin concentrates his practice on general corporate law, real estate law and corporate governance.  Mr. Lin is licensed in California.

Arthur M. Tsai

Arthur Tsai obtained his Bachelor of Arts degree in Business-Economics from the University of California, Los Angeles (UCLA), and received his Juris Doctor degree from Cornell Law School. 


Mr. Tsai practices business, corporate, and a estate transactional law.  He has substantial experience in these areas of law.  Mr. Tsai also has substantial experience in real estate and financial asset investment and management, as he was a principal and general manager at CLG Property Management LP, a real estate investment and management company with a portfolio of over thirty residential and commercial properties in the Inland Empire.  Mr. Tsai has many real estate investor clients to whom he also provides legal counsel and asset management services for industrial and retail properties.  Mr. Tsai has also served on the board of various Homeowners Associations (HOA) for both residential and commercial condominium properties.


Mr. Tsai also has experiences in the financial industry, as he worked with many ultra-high net worth clients in his capacity as a Financial Advisor with Bank of America Merrill Lynch Wealth Management.  Furthermore, Mr. Tsai has substantial entrepreneurial and business investment experience in a variety of industries (e.g., restaurants, grocery markets, wholesale and trading, real estate brokerage, and mortgage banking). 


Additionally, Mr. Tsai was an active participant in the Asian American community in the Greater Los Angeles area for many years.  He has served as an officer and board member for the Taiwanese American Lawyers Association (TALA) and the Southern California Chinese Lawyers Association (SCCLA).  As a member of the leadership team at TALA and SCCLA, Mr. Tsai has planned and organized numerous programs and events relating to community service, pro-bono clinics, student scholarships, and social networking, etc.  


Mr. Tsai is licensed to practice law in the State of California and admitted to the United States Federal Court, Central District of California.  Moreover, Mr. Tsai is a licensed Real Estate Broker, Mortgage Loan Originator, and Notary Public in the State of California. 


Mr. Tsai is fluent in reading and speaking Chinese (Mandarin and Taiwanese dialect). 

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