For over 50 years, we have built our business and reputation on specialization, collaboration and relationships. At Grandfield, we handle tax controversy, your accounting needs and your tax return. Each of our advisors has achieved expert knowledge on specific topics, such as audit representation, corporate tax, small business, sole proprietorship tax and accounting/budgeting.

Larry Grandfield, EA
Co-Founder, Retired
Scott Grandfield, EA, MBA, NTPI Fellow

Larry Grandfield is an Enrolled Agent who began preparing tax returns in 1966, then took the next step of becoming an Enrolled Agent in 1972. He also had an accomplished 25 year career at Hughes Aircraft as a Financial Analyst; retiring in 1989. For over 50 years he has served thousands of clients from all areas of the United States.

Larry is now retired from preparing tax returns, but still helps in various day-to-day operations.

Scott is dedicated to helping clients make intelligent tax and business decisions while ethically minimizing tax liability. His patience, determination, and dedication ensure that every client is treated with high regard. In 1989, Scott began working in the tax office until 2000 when he officially began preparing tax returns. He has also held Management and Accounting positions in companies such as Staples and Enterprise Rent-A-Car to accompany his tax skill set. Scott helped lead Grandfield Tax & Business Services to the Anaheim Chamber of Commerce 2015 Family Business of the Year Award.

Aaron McLennan, EA, 
 Business & Accounting Specialist
David Hilliard, EA,
NTPI Fellow
Tax Controversy Specialist

Aaron has been working in Accounting/Finance field for over 18 years. He graduated from Cal State Fullerton with an Accounting degree in 2000. He has held management positions with Home Depot, Enterprise Rent-A-Car, and was the Director of Finance for the Los Angeles Sparks (WNBA). He specializes in corporate tax, small business and sole proprietorship tax as well as monthly accounting/budgeting.

David graduated from Cal Poly Pomona in 2001. He has been preparing returns in our office since 2009. David brings with him over 15 years of management and customer service experience along with a passion for defending taxpayer rights with a no-nonsense approach and representing clients in front of the IRS and other government agencies.

He has held positions such as Education Chair and 2nd Vice President for the Orange County Chapter of the California Society of Enrolled Agents (OCCSEA).  Currently he is the President of OCCSEA and the education chair for the parent organization, California Society of Enrolled Agents. David is quickly establishing himself as a premier Tax Controversy Specialist in the state.

Justin Carr, EA
Tax Advisor

Justin served in the U.S. Navy from 1992-1996. Shortly after returning home he began his journey into the Information Technology field. While he has worked closely with GTBS, Inc. taking care of our IT needs since 2009, he found his true passion for helping people in our tax office. As an Enrolled Agent, he works on many of our client’s special projects. He treats every client’s situation as a challenge to get the best results for them, to keep their hard earned money, and help them pass on their legacy.

John Kristianson, EA MBA, NTPI Fellow

We wanted to congratulate John on his retirement.  While he is no longer accepting new engagements, you may still see him around tying up loose ends before a big trip.  He has been Enrolled to Practice before the IRS since 1995.  John has developed his own tax practice which he is merging with Grandfield Tax & Business Services, Inc.  John has extensive experience in the fields of Audit representation and Tax Problem Resolution.  He has been extensively involved with the local and state levels of the California Society of Enrolled Agents. 

Bryan Dang, EA
Quickbooks Pro Advisor Bookkeeper
Sierra Trujillo
Office Coordinator

Bryan has obtained his Bachelor’s in Business Administration with a concentration in Accounting. While in school, he found a passion for helping people with tax. Additionally, he is a Quickbooks Certified ProAdvisor, helping both individuals and businesses maintain their accounting.  He has passed the Special Enrollment Exam allowing him to practice before the IRS. By being part of many leadership organizations on campus, he is able to take charge of any situation and navigate to ensure that every client has their best foot forward.  

Sierra had spent four years developing talents at one of the most chaotic work environments, Walmart. She became known as the “fix-it” person; she wore several hats over those years including 2 years in the ever ebb-and-flow of personnel, as the personnel coordinator. When she is not spending time with our family she is committed to her own family always looking forward to either baking or traveling.

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