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Who We Are

Our Team

Paul Joo, CPA (714) 537-1200

Mr. Paul S. Joo, CPA, is the owner and general manager of the firm. He studied accounting at UCLA graduating in 1988. After graduation, he spent several years working as a Senior Auditor at various accounting firms including PriceWaterhouse Coopers, one of the world's largest professional accounting firms, where he acquired invaluable consulting skills working with many successful corporate owners. As part of these engagements, he witnessed the positive influence of his services on his clients as their businesses prospered. This hands-on business experience prepared him to be a successful entrepreneur in his own accounting firm, Paul S. Joo, CPA Accountancy Corporation which he established in December, 2005 in Garden Grove, California.

As a result of his expert knowledge and prudent character, the firm has experienced tremendous growth since opening. In November 2010, the practice expanded through the opening of a second branch office in Brea, CA. This enabled the firm to service a broader client base including clients located in Northern Orange County. The firm services a wide range of clients from many different industries, domestic and foreign, including but not limited to manufacturers, labor union chapters, non-profit entities, wholesalers and retailers and for profit schools.

Mr. Joo has been frequently invited to speak on various tax topics including Gift and Estate planning and Real Estate taxes in seminars and local attorneys' BAR associations meetings. Mr. Joo is also pursuing a Masters' degree in Taxation at Golden Gate University. Mr. Joo has been a CPA since 1996.

Frank Rawson, CPA (Inactive) (714) 537-1200

Mr. Rawson, CPA has held his CPA license since 1983. He started in public accounting with Kenneth Leventhal & Company, a national CPA firm specializing in real estate related activities, working in both the auditing and tax departments as well as on consulting engagements. He has also held controllership and financial management positions for several medium sized businesses included a real estate syndicator and construction contractor. He previously has his own practice for ten years in Orange County working with small and medium sized businesses. This background provides him with a broad prospective from which to advise on auditing, accounting and tax matters.

Mr. Rawson earned his B.A. in Economics from Stanford University in 1973 and has completed significant post graduated work in accounting and taxation at California State University, Long Beach and California State University, Fullerton.

Judy Klein, CPA (714) 537-1200

Ms. Judy Klein obtained her CPA license in 2003 in State of California. She retains a wide array of advanced experience in both accounting and taxation. Ms. Klein also worked as a financial analyst in international financial institutions in various parts of Asia for four years.

Moving on to the United States, she has worked in reputable CPA firms at Beverly Hills, West Los Angeles, and Newport Beach. As a result of her successful career, Ms. Klein was promoted from staff accountant to audit supervisor. Prior to joining our firm in 2014, Ms. Klein played a major role as an accountant to expand an international bakery chain with its branches in United States. She successfully led this bakery business to quadruple its store numbers in seventeen months.

Ms. Klein earned her Bachelor’s Degree from National Taiwan University, Department of Finance. She is fluent in both Mandarin and English. Her greatest fulfillment is to help others with her knowledge and expertise in accounting, taxation, finance, and business development.

Kelly An, CPA (714) 537-1200

Ms. Kelly An started her career in 2008 at a local CPA firm. Before joining our team in November 2016, Kelly has been working to assist small to medium businesses in a variety of industries and individuals with their taxation, tax planning, bookkeeping, and other accounting services. She earned her Bachelor of Arts degree in Business Administration with accounting concentration at California State University, Fullerton graduating in May, 2013 with honors Magna Cum Laude. She obtained her CPA license in January 2019. Kelly says she is enjoying helping other people with their tax returns and tax issues.

HyunJoo Kim, CPA 714-537-1200

Joining this firm on November 2017 was Ms. HyunJoo Kim, who had worked for an international logistic company as the accounting manager for six years. She was in charge of comprehensive accounting duties including international tax report, fund management, MIS and other accounting matters.

She earned her Bachelor of Science degree in Computer Engineering from Chung-Ang University in Seoul, South Korea, and also received second Bachelor of Science degree in Business Management while she had worked as an accounting programmer for Korean Federation of Community Credit Cooperatives.

She passed the all CPA exams and holds license of CISA (Certified Information Systems Auditor) and CIA (Certified Internal Auditor).

HyunJoo says the numbers show everything about a company and how well accountants manage their company finances. As a prudent accountant, she feels great about her important responsibility and her daily challenging work makes her fascinated.

Chang Wook Choi, CPA 714-537-1200

Mr. Chang Wook Choi joined our firm in November, 2018. Prior to joining our firm, he has been working in public accounting industry since 2000. He has a wide range of experiences in tax return preparation and tax planning for individual and business entities. Also, he had worked for a clothing manufacture & wholesale company as the accounting manager for three years. He earned his Bachelor of Arts degree in Education from Sung Kyun Kwan University in Seoul, South Korea. He obtained his CPA license in March 2019.

Jessica Kim 714-537-1200

Ms. Jessica Kim is a California State University, Long Beach graduate with a Bachelor of Science, Accountancy in August 2016. She joined the Paul S. Joo, CPA firm to obtain a wide range of accounting experience which enables her to provide relevant advice and assistance to business owners with internal accounting, periodic reporting, forecasting and implementation of succession plans. Jessica continues to further her knowledge by preparing for the CPA exam.

Jessica Says, “Accounting is not boring, recording transaction, analyzing them, and looking for legal ways of cutting tax expenditures. I want to help my clients and community identify cost-cutting measures they hadn’t previously discovered, and developing tax strategies.”

Joo Yeol Han 714-537-1200

Mr. Joo Yeol Han graduated cum laude with Bachelor of Science degree in Accountancy at California State University Long Beach on May 2018. He strives to help clients effectively manage and understand their business. Therefore, it is very important for Mr. Han to develop deep understanding of his client’s business and unique challenges that business face. Before joining Paul S. Joo CPA office, he worked as a staff accountant at Republic of Korean Army, where he experienced in research and development in tax code. Also, he worked at Volunteer Income Tax Assistance (VITA) program to offer free individual tax returns.

Joo Yeol Says “I have big passionate about public accounting. I enjoy working with my client, helping my client deal with the accounting, tax, and financial management they face in business. Frequent interaction with my client and their appreciation is extremely rewarding to me. Every client is special to me, and I want to watch each of my client’s business to grow over the years.”

Yaeri Kim 714-537-1200

Ms. Yaeri Kim graduated with B.S. in Accountancy and Master of Accountancy from Case Western Reserve University (Magna Cum Laude). She worked in various accounting fields, including non-profit organization, international logistic company, and public accounting firm. She has completed all the prerequisite credits to sit for the California State Uniform CPA Exam and working toward to be licensed. She speaks fluent English and Korean.