(877) 637-3783

About Us

Mission Statement

Our mission statement is to provide comprehensive and high quality tax representation services for our clients while being transparent about the process and outcome of their cases


Be kind, speak your mind, and have fun.

George Oganesyan

Lead Tax Attorney

George is a managing partner of Tax Mediation Services, one of the leading accounting firms in Los Angeles. George graduated from the University of California Los Angeles and is a juris doctor from USC Law school. He specializes in resolving tax issues for individuals, businesses, and non-profits. He is a taxation section member of the American Bar Association and a member of the California State Bar.

Paul Sibley

 National Enrolled Agent

Paul joined our firm in June 2016 and holds the position of an enrolled agent. He holds a BS in Business Administration. Paul has over 8 years of experience in tax preparation, accounting services, payroll taxes, and individual & corporate tax resolution. He has saved our clients over $1 million in tax debts.

Paul also served as a Marine for the United State of America and has a passion to serve other people and increase his professional credentials.

Stephen Kaiser

Certified Public Accountant and Enrolled Agent

Stephen has a long history as a tax accountant, working as an auditor the IRS at one point and then within the corporate tax industry for over 20 years. He has a BA in English & Political Science, a BS in Accounting, and an MBA in Finance, and is licensed by the Internal Revenue Service as an Enrolled Agent. He has worked for some of the largest tax firms in the world, including Ernst & Young (E&Y) & PricewaterhouseCoopers (PwC), Deloitte, and Klynveld Peat Mar wick Goerdele(kpmg). Stephen is up-to-date on the ever changing tax laws and focuses on our firm’s developing role in the tax field. 

Shirak Sargsyan

Enrolled Agent

 Shirak has worked with clients on project-oriented engagements to provide resolution services and potential tax savings results. In this role, he is required to have an excellent depth of tax knowledge and experience working on specialized engagements and to identify tax savings opportunities for his clients. Shirak’s responsibilities include a focus on income, corporate, and employment tax resolution programs, as well as assisting clients to ensure proper expectations are set.

Our Partners

Get it Right the First Time.

Contact Tax Mediation Services for trusted tax professionals.

Tax Mediation Services Beverly Hills Office
8383 Wilshire Blvd Suite 800

Beverly Hills, CA 90211 | (877) 637-3783


Tax Mediation Services Beverly Hills Office
8383 Wilshire Blvd Suite
800 Beverly Hills, CA 90211
(877) 637-3783