Accounting for the past, planning for the future


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Our Business is Knowing Your Business

Welcome and thank you for visiting our website. In addition to providing you with a profile of our firm and the services we provide, this website has been designed to become a helpful resource tool to you, our valued clients and visitors. Our dedication to superior client service has brought us to the Internet as we endeavor to continue to provide the highest quality professional service and guidance.

As you browse through our website, you will see that we have highlighted background information on our firm and the services we provide.   In addition, we have taken the time to gather many links to external websites that we think would be of interest to our clients and visitors in our Resources section.

Please feel free to contact us with any questions or comments you may have - we would love to hear from you. We pride ourselves on being proactive and responsive to our clients' inquiries and suggestions.

Maureen O'Gara-Adford, CPA ~ Martin Seiden, CPA ~ Lynnette Shidner, CPA ~ Stan Arutti, CPA ~ Lance Lobdell, CPA ~ Darryl Gross, CPA



Certified Public Accountants and Advisors

Please note our new address as of June 23, 2017

21800 Oxnard Street, Suite 300 | Woodland Hills, California, USA 91367

T: 818.854.6100 | F: 818.854.6103


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gish SEIDEN is a member firm of the “Nexia International” network. Nexia International Limited does not deliver services in its own name or otherwise. Nexia International Limited and the member firms of the Nexia International network (including those members which trade under a name which includes the word NEXIA) are not part of a worldwide partnership. Member firms of the Nexia International network are independently owned and operated. Nexia International Limited does not accept any responsibility for the commission of any act, or omission to act by, or the liabilities of, any of its members. Nexia International Limited does not accept liability for any loss arising from any action taken, or omission, on the basis of the content in this [depending on the medium which displays this disclaimer, insert email, publication or article] or any documentation and external links provided. The trade marks NEXIA INTERNATIONAL, NEXIA and the NEXIA logo are owned by Nexia International Limited and used under licence. References to Nexia or Nexia International are to Nexia International Limited or to the “Nexia International” network of firms, as the context may dictate. For more information, visit