Our Team

Seiler & Associates and has been in the financial services industry for over 30 years.

Mark S. Seiler,

Managing Member & Chief Executive Officer

Mark is the founder of Seiler & Associates and has been in the financial services industry for over 30 years. He graduated from Seton Hall University with a B.S. in Accounting and a minor in Finance. He has done graduate work at Seton Hall University, Fairleigh Dickinson University and California State University, Northridge.

Mark became a CPA in 1985 and obtained his Personal Financial Specialist (PFS) designation in 1999. He is a Registered Investment Advisor and is a member of the National Association of Personal Financial Advisors (NAPFA), the American Institute of CPA’s and the California Society of CPA’s.

In addition, Mark continues to serve and support various religious and non-profit organized charities in the Pasadena area.


Douglas Eichenhofer


Doug has more than 35 years of experience in public accounting, providing a wide range of services to a variety of industries in the technical areas of auditing, taxation, and accounting. He is a CPA and specializes in the area of estates and trusts. Doug has also obtained the Personal Financial Specialist (PFS) designation, is an Investment Adviser Representative, and is a Director of Seiler & Associates, LLC, Investment Council.

Doug serves and supports various non-profit health care organizations near his home town of Long Beach.


Ryan Q. Lin

Executive Associate

Ryan has more than 20 years of experience in public / corporate accounting and finance. He became a CPA in 1999 with areas of expertise in auditing and corporate accounting. Ryan also has technical experience in planning & budgeting and strategic management. He previously worked for Farmers Insurance Group, KPMG and Capital Group. He is currently pursuing an Investment Advisor Representative license.

Ryan volunteers and supports various sports organizations in the San Gabriel Valley area.


Andrew M. Kwan


Andrew obtained his masters in taxation from Golden Gate University in Los Angeles in 1998.  He has over 25 years of accounting and tax experience in various industries, performs portfolio management, and manages our information systems.

Andrew lives in San Gabriel and supports various religious organizations there.


Yari J. Mejia


Yari has a Bachelor in Business Administration from a highly recognized International University and an AA in Marketing from Los Angeles City College. Fully bilingual in English and Spanish with over 15 years experience in providing customer service. She is an Investment Advisor Representative and has over 10 years working in the Finance Industry and Business Management, including 4 years with JP Morgan Chase. Yari is a relationship manager and assists with financial planning for wealth management clientele, is an accountant, a QuickBooks Advisor and a Notary Public.