Your business. Your family. Your goals.

A comprehensive plan.

Aguayo, Serrallés & Cabán - Team Picture

At times, the complexity of today’s global economy may feel overwhelming. Whether you’re a working professional who is building wealth, a successful executive or business owner contemplating your next act, or the head of a multigenerational family looking to preserve your family’s future—you have questions. You expect clear answers from an advisor with worldwide experience who understands you, your family and your community.


Our highly credentialed team offers the thoughtful perspective and proactive service your family needs to help meet their goals. With a team of advisors spanning decades of experience, we strive, relentlessly, to make sure you feel well taken care of. By putting financial planning at the core of everything we do, we offer the capabilities to help you, your business and your family unlock opportunity, preserve wealth and create continuity.

Collective knowledge, complementary experience

We have guided clients through the complex world events and financial disruptions that have characterized the past two decades, so you can feel confident that we have the experience to help you navigate what may lie ahead. Our collective input is delivered personally to you through our team, so you can develop a consistent, long-term relationship with us.

  • Xavier A. Aguayo  Profile Picture

    Xavier A. Aguayo, CPWA, CEPA

    Senior Vice President–Wealth Management

    Financial Advisor

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    • CA
    • DC
    • FL
    • IL
    • MA
    • MI
    • NC
    • NY
    • PA
    • PR
    • VA
    • VI
    • VT

    Xavier helps wealthy individuals and families develop strategies designed to enhance their standard of living and optimize their financial lives. He takes an educational approach with his clients to emphasize the importance of detailed and coordinated financial planning. Xavier’s recommendations are always the result of a consultative process, where he listens carefully to learn about each client’s goals, needs and priorities before developing a plan. As a Corporate Stock Benefits Consultant, he has specific knowledge regarding compensation issues for executives and can provide strategic advice to these clients.

    Xavier has worked in the wealth management industry since 1997 and has been with UBS since 2002. He is a FINRA-Registered General Securities Representative and holds the FINRA Series 7, 63 and 65 licenses, as well as life insurance and variable annuity licenses. Xavier has also earned the Certified Private Wealth Advisor and Certified Exit Planning Advisor designations. Xavier graduated from Marquette University with a B.A. in economics.

    Xavier is a dedicated family man and spends his free time traveling, practicing the violin and planning his next family adventure. He has a profound desire to be a valuable member of the Puerto Rico community and enjoys being involved in local arts, music and education organizations.

    • Forbes Best-in-State Wealth Advisors, 2026The Forbes rating is compiled by Shook Research and awarded annually in April based on information from a 12 month period ending June of the prior year.

        250 Munoz Rivera Avenue
        A.I Plaza, PH Floor
        San Juan, PR 00918
        xavier.aguayo@ubs.com
        Xavier A. Aguayo, CPWA, CEPA
        250 Munoz Rivera Avenue,San Juan,PR,00918
      • William J. Serralles Profile Picture

        William J. Serralles

        Senior Vice President–Wealth Management

        Financial Advisor

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        • CA
        • FL
        • IL
        • MA
        • MI
        • NC
        • NJ
        • NY
        • PA
        • PR
        • VA
        • VI
        • VT

        William works with successful individuals, families and corporations to develop integrated planning strategies focused on their financial well-being. He is particularly skillful in building strong client relationships and communicating complex financial concepts clearly. William’s background in equities and his experience working on Wall Street have enhanced his knowledge of risk management and, as a Corporate Stock Benefits Consultant, he offers an informed perspective and recommendations to executives regarding compensation issues.

        William has more than 30 years of wealth management experience and joined UBS in 1998. He is a FINRA-Registered General Securities Representative and holds the FINRA Series 7, 63 and 65 licenses, as well as life insurance and variable annuity licenses. William earned a B.A. in finance and economics from the Catholic University of America in Washington, D.C.

        William’s top priority in life is spending time with his family. His passion and what he would call a “serious hobby” is music and music production. William and his wife are very conscious about the social issues that abound in Puerto Rico and believe the best way they can make a difference is by contributing to children’s education, health and empowerment initiatives, because children hold the key to the future.

        • UBS Wealth Management Director’s Council, 2025UBS Financial Services Inc. Councils are a distinction held by UBS Financial Advisors based on criteria including evaluation of compliance with firm rules, standards & policies and revenue. Council membership is not representative of any one client's experience and is not indicative of the advisor’s future performance.

            250 Munoz Rivera Avenue
            A.I Plaza, 16th Floor
            San Juan, PR 00918
            william.serralles@ubs.com
            William J. Serralles
            250 Munoz Rivera Avenue,San Juan,PR,00918
          • Eduardo E. Caban Profile Picture

            Eduardo E. Cabán, CIMA

            Senior Vice President–Wealth Management

            Private Wealth Advisor

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            • CA
            • FL
            • IL
            • MA
            • MI
            • NC
            • NY
            • PA
            • PR
            • VA
            • VI
            • VT

            Eduardo brings a consultative approach to learning about his clients’ needs and developing financial plans and portfolio strategies to support them. Prior to becoming a Financial Advisor, he was a key member of the UBS Consulting Division, serving institutional and individual ultra-high-net-worth clients with portfolio construction and asset management requirements.

            Eduardo has more than 20 years of wealth management experience and joined UBS in 2007. He is a FINRA-Registered General Securities Representative and holds the FINRA Series 7, 63, 65 and 24 licenses, as well as life insurance and variable annuity licenses. Eduardo has earned the Certified Investment Management Analyst designation, and, within the firm, he has achieved the Private Wealth Advisor designation offered at UBS. Eduardo graduated from the University of Puerto Rico with a B.A. in finance.

            In his personal time, Eduardo’s priority is spending time with his family, including his two young boys. He also loves to explore the culinary side of life and cook with friends and family. In addition, Eduardo is an active member of the Alumni Association of his school and leads fundraising efforts for scholarships, as he believes education is the backbone of a society.

                • Private Wealth Advisor
                • Certified Investment Management Analyst
                250 Munoz Rivera Avenue
                A.I Plaza, 16th Floor
                San Juan, PR 00918
                eduardo.caban@ubs.com
                Eduardo E. Cabán, CIMA
                250 Munoz Rivera Avenue,San Juan,PR,00918
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                Alanna Maldonado

                Client Associate

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                        250 Munoz Rivera Avenue
                        A.I Plaza, 16th Floor
                        San Juan, PR 00918
                        alanna.maldonado@ubs.com
                        Alanna Maldonado
                        250 Munoz Rivera Avenue,San Juan,PR,00918
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                        Lissette Diaz

                        Authorized Officer

                        Senior Wealth Strategy Associate

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                        • CA
                        • FL
                        • IL
                        • MA
                        • MI
                        • NC
                        • NY
                        • PA
                        • PR
                        • TN
                        • VA
                        • VI
                        • VT

                              250 Munoz Rivera Avenue
                              A.I Plaza, 16th Floor
                              San Juan, PR 00918
                              lissette.diaz@ubs.com
                              Lissette Diaz
                              250 Munoz Rivera Avenue,San Juan,PR,00918
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                              Olga Carbia

                              Client Associate

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                                      250 Munoz Rivera Avenue
                                      A.I Plaza, 16th Floor
                                      San Juan, PR 00918
                                      olga.carbia@ubs.com
                                      Olga Carbia
                                      250 Munoz Rivera Avenue,San Juan,PR,00918

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