About Us
San Diego California based law firm specializing in IRS problems including tax audits, tax appeals litigation and bankruptcy.
William D. Hartsock Esq.
Certified Tax Law Specialist under the State Bar of California. (1/7/94)
A Certified Tax Law Specialist is the highest designation available to a tax attorney. To be qualified as a Certified Tax Law Specialist, the California State Bar requires passing a rigorous written examination on technical tax law, at least 5 years of practice in a broad range of taxation issues including individual, corporate, partnership, limited liabilities companies, and estates and trusts , and that other tax attorneys, Certified Public Accountants, and tax professionals have vouched that this person is competent in taxation law. Earned a Masters in taxation at the University of San Diego- School of Law after completing University of San Diego School of law Juris Doctorate and an undergraduate Accounting Degree at the University of Nebraska-Lincoln.
Sherry McDonald

Graduated with a Bachelor of Business Administration in Financial Accounting and went on to earn a Masters in Taxation- with Distinction at National University.
With over twenty years practical experience in complex forensic accounting, has handled hundreds of sales and payroll tax audits, negotiated many successful offers in compromise and has had experience in international taxation including offshore entities and controlled foreign corporations.
Debra Anderson
Forensic Bookkeeper with over twelve years experience in bookkeeping for this law firm.Thida Tran
Graduated from San Diego State University in the Spring of 2008 with a Bachelor of Arts in Psychology. Is the Office Manager and specializes in tax return processing, Microsoft Word & Excel. Mastering in Quickbooks. Currently pursuing a Masters of Business Administration at National University.

Megan Hartsock
Legal assistant. Mastering in Quickbooks. Currently pursuing a Bachelors degree in History
Andrew Harstock
Tax Research Assistant working towards a law degree.

