Big Four expertise.
Personalized experience.

Josué Rivera is a tax and business advisory partner with Rivera & Montes CPA where he advises businesses with their accounting, compliance, and tax needs. Josué has over 24 years of professional experience, 19 of them with PwC.  His expertise spans across multi-national companies, large compliance engagements and large family-owned businesses in industries such as finance, manufacturing, pharmaceuticals, entertainment, distribution, construction and telecommunications. He has successfully managed advising large family-owned businesses from soup to nuts, including providing advice on their corporate tax planning, financial wealth, and individual tax requirements.

Josué has given presentations on Puerto Rico and United States tax developments and has taught seminars in both jurisdictions on tax transactions. In addition, he has written articles for national newspapers and been interviewed by news media.

Josue holds a bachelor’s degree in business administration with a major in accounting, magna cum laude, and a juris doctor degree, both from the University of Puerto Rico. He holds a CPA license in the states of New York and Puerto Rico. Josué is fluent in Spanish and English.

Javier Montes is an assurance and business advisory partner with Rivera & Montes CPA. 

Javier has over 18 years of experience within assurance and business advisory services. Prior to starting Rivera & Montes CPA in 2017, he spent 13 years working at EY within the assurance practice. He works with a number of domestic and cross border companies, providing accounting and financial reporting advice. Javier has extensive experience working on complex accounting matters, including recognition within US GAAP and IFRS accounting frameworks.

Javier has a B.S. in Accounting, magna cum laude, from Pontificia Universidad Catόlica de Puerto Rico. He is CPA licensed in the state of New York and in Puerto Rico, as well as a member of the American Institute of Certified Public Accountants and the New York State Society of Certified Public Accountants.  Javier also actively participates in the NY Chapter of ALPFA (Association of Latino Professionals for America). Javier is fluent in Spanish and English.

Mike Lee is a Senior Associate at Rivera & Montes CPA. He is involved in assurance, accounting and various tax services for small and medium sized companies. Mike’s recent work includes but is not limited to audit and review engagements, accounting, corporate tax, and sales tax for online retailers, heavy machine retailers and other businesses. 

Mike has a B.S. in Business and M.S. in Accounting from New York University Stern School of Business with concentrations in Accounting and Information Science. He is also a CPA in the state of New York.  Mike is fluent in English and Korean.

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Ivan Gu is an Associate with Rivera & Montes CPA where he helps businesses with their financial reporting and tax services. Ivan has experience in financial accounting and reporting services. Ivan has worked with a number of companies across several industries, and he has experience engaging with third parties to streamline and expedite accounting cycles.

Ivan holds a Master’s in accounting from Yeshiva University and an MBA with a concentration in Finance. He is applying for his CPA license in New York State. Ivan is fluent in English and Chinese.

Petch Arpornpattanapong is an Associate at Rivera &Montes CPA where he is involved in assurance and various tax services for small and medium sized companies. Petch has experience in audit and tax compliance, and he has worked with companies across many industries. 

Petch has a B.S. in Business with concentrations in Accounting and Information Science, and a minor in Psychology, and a M.S. in Accounting from New York University Stern School of Business. He is currently a candidate for the Uniform CPA Exam. Petch is fluent in English and Thai.

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