Company Profile

Mission Statement

We are a proactive local accounting firm providing a wide range of services with integrity, honesty and a commitment to excellence. We are an aggressive advocate for our clients’ tax savings and empathetic to all of their needs. We are a growth-oriented firm that values our employees and seeks to provide opportunities for their personal and business success.

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“My family and I want to thank you for the outstanding leadership and assistance you have provided! It is a great pleasure and honor to work with you. I look forward to future activities. My very best wishes.”

~ John

Daniel G. Gilliland, CPA President

Dan established Gilliland and Associates, P.C. in 1987. For three decades the firm has offered a broad range of services to a diversified group of clients in many industries and businesses including real estate, personal and professional services, international trade, and nonprofit organizations.

As president of Gilliland and Associates, Dan provides his clients with extensive expertise and consultation in tax planning, corporate and personal taxes, coordinating and performing certified audits, IRS audits, and representation before the IRS.

Dan occasionally contributes articles to various business publications and is a sought after speaker for professional groups and organizations. Dan received his Bachelor of Science Degree in Accounting from the University of Maryland in 1984, graduating Cum Laude with academic distinction. He received his CPA in May of 1985 after his first sitting, and is licensed in Virginia and Maryland.

An active member of Toastmasters International, Dan has served two terms as his chapter’s President. He has also served one term as Area Governor of Toastmasters and one term as Division Governor of Toastmasters. Dan is also a member of Business Networking International’s (BNI) Herndon Business Exchange where he serves on his chapter’s membership committee. He is a member of the Virginia Society of CPA’s and a member of the American Institute of Certified Public Accountants. Dan is the president of the McLean Hills Condominium Association, serving on their board of directors for the last fifteen years.

Dan lives in Falls Church with his wife Kaili, a kindergarten teacher. Dan enjoys bowling, karate and is a black belt in Tai Kwon Do.

We always try to make sure our customers get their money’s worth and are happy with our service. Good service at a good price, it’s simple.”

Staff Profiles Administrative Support

Virta L. Commodore
Office Manager

Virta handles a variety of diverse duties on a daily basis that keep our office humming. If you need a specific form, have a question about an invoice or about our services, Virta is the person to call. A graduate of Suitland Business School, Virta joined Gilliland & Associates in 2007.

I believe that establishing a good relationship with our clients is a win-win situation for everyone.”


Bill Glassbrook, CPA
Staff Accountant

Bill joined Gilliland & Associates in December, 2012, and provides accounting and tax services for our clients. Bill is a certified public accountant, a certified member of the QuickBooks ProAdvisor® Program, and a member of the Maryland Society of Accountants.

Bill graduated from Bridgewater College and has enjoyed continuing education ever since to broaden the areas in which to help his clients. A long-time resident of the DC Metro area, Bill enjoys reading, working with computers, and other electronics.

I find it is always faster and less expensive to get things done right the first time.”

Jeremy Thorpe, CPA
Tax Accountant

Jeremy provides our clients with expert tax accounting services. He is the newest member of the Gilliland team, joining us in January, 2014.

In addition to being a tax accountant, Jeremy became a Certified Public Accountant in 2011. He has a Bachelors of Science in Accounting from George Mason University, where he graduated in 2003; and a Juris Doctor from Rutgers School of Law, which he received in 2006. Jeremy is also a QuickBooks Certified Pro Advisor, and a member of AICPA.

A talented musician, Jeremy plays guitar and mandolin.

I like working with clients and watching their businesses grow year after year, seeing the benefits of them having a good tax accountant.”

Rose Tsang,CPA
Tax Accountant

Rose enjoys working with numbers and solving puzzles. Rose is a Certified Public Accountant and a certified QuickBooks ProAdvisor. She received her Bachelor of Science from Tufts University and Master of Business Administration specialized in accounting from University of Connecticut.

In her free time, Rose enjoys travelling, gardening and volunteering at the library.

Each client is unique; I strive to personalize each tax return so that it would be accurate under the Tax Codes.”

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