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Your Global Business Partner

PARTNER

-17 Years of Expertise in International Taxation 

-Successfully managed overseas withholding tax litigation for major conglomerates. 

-Consulted for U.S. organizations and businesses, including UNICEF (New York) and advised

Amazon sellers on expansion into the South American market. 

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Sunny H. Do, CPA, MBA Managing Partner

Qualifications & Licenses

  • Certified Public Accountant (CPA): Licensed in California, USA (License No. 1005**) and Texas, USA (License No. 1226**)
  • U.S. Tax Authority Designations:
    • IRS Registered Tax Preparer (PTIN: P031023**)
    • IRS Client Representative (CAF: 0306-196**R)
  • CANADA:  Authorized Representative for Canada Revenue Agency (CRA) Non-Resident Clients (NR001085**)


Education

Master of Business Administration (MBA): UCLA Anderson School of Management (California, USA)

  • Included exchange programs in Hong Kong and India


Career Highlights

International Tax & Compliance

  • Multinational Tax Management: Managed tax, accounting, and legal compliance for a Korean startup (backed by SoftBank & Samsung) operating in 26 countries, including major EU member states
  • Global Compliance Oversight: Directly supported tax compliance in jurisdictions including the U.K., Germany, France, Ireland, Poland, Belgium, Hong Kong, and the Philippines
  • Investment Firm Oversight: Oversaw international subsidiaries for a global investment firm (NYSE: ARES)
  • Specialized Tax Litigation: Worked on withholding tax refund litigations, involving major corporations, including Samsung Electronics and SK Hynix

U.S. & Corporate Consulting

  • U.S. CPA Firm Experience: Focused on both U.S. domestic and international taxation
  • Financial Advisement: Advised UNICEF New York and various U.S. corporations on complex tax and accounting matters
  • E-Commerce Expansion: Advised Amazon Headquarters on market expansion strategies for sellers moving into South America

Financial Management

  • LG Investment & Securities (now NH Investment & Securities): Managed international investments and investor relations

Ian Mensik, JD, CPA  Partner

Qualifications & Licenses

  • Attorney at Law: Licensed in Arkansas, USA (License No. AR20101**)
  • Certified Public Accountant (CPA): Licensed in Arkansas, USA (License No. 81**)
  • U.S. IRS Designation: Registered Tax Preparer (PTIN: P021260**)
  • Certified Internal Auditor (CIA, Status: Inactive)

 

Education

  • Juris Doctor (JD): University of Arkansas, William H. Bowen School of Law

 

Career Highlights

Litigation & Tax Defense

  • Tax Disputes Specialist: Specialized expertise in tax disputes and bankruptcy law for corporate clients
  • IRS Audit Representation: Over 10 years of experience successfully representing clients in complex IRS audits
  • Tax Negotiation Leader: Led numerous tax dispute negotiations with the IRS on behalf of corporations

Global E-commerce Support

  • E-commerce Counsel: Partner attorney for FlatFeeCorp, providing specialized legal support for global U.S. sellers

Lucio Steduto Partner


Qualifications & Licenses

  • Chartered Accountant (Italy & Germany)

Expertise

  • VAT compliance in U.K., Germany, France, Spain, Netherlands, and Sweden
  • Corporate formation and bank account opening across major Western European countries

Education

  • MSc International Business, University of Dundee (UK)
  • BA, Università degli Studi di Parma (Italy)

Grzegorz Plewka  Partner


Qualifications & Licenses

  • ACCA Chartered Accountant

Expertise

  • Company formation across Eastern Europe (Poland)
  • Offline corporate bank account setup without local visits

Education

  • BA, University of London (UK)

鎌田税理士事務所  Partner


Qualifications & Licenses

  • Licensed Tax Accountant (Zeirishi), Japan

Expertise

  • Corporate taxation (corporate tax, consumption tax), international tax, financing support
  • Japanese corporate formation and bank account setup
  • Specialist for Amazon sellers operating in Japan

Esther Hwang, CPA  Partner


Qualifications & Licenses

  • Certified Public Accountant & Tax Consultant, California, USA
  • IRS Certifying Acceptance Agent (ITIN)

Education

  • MSc Taxation, Golden Gate University (USA)

Expertise

  • U.S. sole proprietorship and nonprofit tax compliance
  • ITIN issuance and U.S. personal taxation

Francis Luk Partner


Qualifications & Licenses

  • Chartered Accountant, Hong Kong

Affiliations

  • Lai & Fong CPA Ltd.
  • Standard Secretarial Services Ltd.

Expertise

  • Hong Kong corporate formation
  • Offshore companies
  • Bank account setup