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Wrong William Quackenbush?

William C. Quackenbush

Managing Director

Advent Valuation Advisors LLC

HQ Phone:  (845) 567-0900

Direct Phone: (212) ***-****direct phone

Email: b***@***.com


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I agree to the Terms of Service and Privacy Policy. I understand that I will receive a subscription to ZoomInfo Community Edition at no charge in exchange for downloading and installing the ZoomInfo Contact Contributor utility which, among other features, involves sharing my business contacts as well as headers and signature blocks from emails that I receive.

Advent Valuation Advisors LLC

11 Racquet Road Suite C

Newburgh, New York,12550

United States

Company Description

Advent Valuation Advisors is a valuation and financial consulting firm serving regional, national and international clients. We have worked with hundreds of businesses and their professional advisors throughout the United States, Canada, and Europe. Our client...more

Background Information

Employment History

European-American Bank

Brooklyn Savings Bank


Community Foundation of Orange and Sullivan

Board Member

American Society of Appraisers

Vice-Chair of the Business Valuation Committee

Orange Regional Medical Center


Business Valuation News

Business Valuation Education Committee

International Society of Business Analysts

Board of Advisors

New York Chapter

Chapter Treasurer

Education Committee of the IBA

Member, Education Committee

Mount Saint Mary College

Adjunct Faculty



Adelphi University


Canadian Institute of Chartered Business Valuators


International Institute of Business Valuers

Web References(163 Total References)

How Much Is A Breaching Partner Worth? - Advent Valuation Advisors [cached]

By Bill Quackenbush
In a case that William Quackenbush, ASA, MCBA, ABAR provided expert witness testimony, there was a 3-person partnership, the partnership agreement of which provided that the partnership would continue for 50 years. The non-breaching partner's attorney collaborated with a CPA and William Quackenbush, ASA, MCBA, ABAR, the managing director of Advent Valuation Advisors. Both experts testified that book value accounting is not a valuation convention, but an accounting convention that significantly depreciates an entity's assets and does not reflect the company's true value. Mr. Quackenbush opined that the language of Section 69 supported a fair market valuation. Both Mr. Quackenbush and the CPA also testified that the poor bookkeeping practices of the partnership prevented a true market value analysis. Mr. Quackenbush testified that the partnership's recorded value of the machinery and equipment and inventory needed to be adjusted to fair market value to reflect a realistic value of the company.

Business Owners - Advent Valuation Advisors [cached]

I highly recommend Bill Quackenbush for his expertise in valuation.
He is knowledgeable, conscientious, exercises keen attention to detail and was able to meet my tight schedule demands. William completed the work with an exceptional degree of professionalism and ahead of schedule. I recommend his services without reservation. Bill did an excellent job of providing a valuation for us. He was thorough, honest and complete in his assessment. Bill always provides great on time service! I have worked with Bill on several engagements this year ranging from a small matter to a very large, complex estate valuation. His results are always delivered within the time promised or sooner and he delivers a professional work product that I can have confidence in. Bill and I met through ASA back in the late 90"s. Through Bill's background in banking and business financing, he has been engaged on numerous sizeable business valuation assignments. His astonishing experiences has made him an authority on business enterprise valuation. Bill shares his knowledge through speaking to audiences and writing articles. It is a pleasure to be associated with Bill.

Board of Directors | Community Foundation of Orange and Sullivan [cached]

William Quackenbush, MBA, ASA, MCBA, BCA
Managing Director Advent Valuation Advisors, LLC

Instructors (AR) - International Institute of Business Valuers [cached]

William Quackenbush
MBA, ASA, MCBA, BCA, ABAR With nearly 40 years of business experience Mr. Quackenbush is the managing director of Advent Valuation Advisors. He is an Accredited Senior Appraiser (ASA) in Business Valuation, a Master Certified Business Appraiser (MCBA), Accredited in Business Appraisal Review (ABAR). Mr. Quackenbush has provided expert witness testimony in Federal and New York State Supreme Court and before the American Arbitration Association. Mr. Quackenbush served as the technical reviewer of the AICPA's book on business valuation, "Valuing a Business" (both 3rd and 4th editions), was a contributing author of "IFRS Fair Value Guide" published in April 2010 by John Wiley and Sons, Inc, and a contributing editor of the Financial Valuation and Litigation Expert. He has also authored one of the ASA's principal of business valuation courses and texts. Mr. Quackenbush speaks regularly on business valuation issues, having taught Continuing Legal Education credits on the subject, as well as Continuing Education credits to appraisers and certified public accountants, including teaching in-house business valuation courses to "big four" accounting firms - both in the U.S. and in Europe, Asia and South America - as well as to the Chinese Appraisal Society in Beijing.

Valuation Products and Services [cached]

William C. Quackenbush
WILLIAM C. QUACKENBUSH, MBA, ASA, CBA is the founder of Advent Valuation Advisors. With more than 35 years of valuation and banking experience, Bill provides valuation for tax and financial statement compliance and litigation support in damage/economic loss matters. He is the vice-chair of the ASA's Business Valuation Committee, editor of the ASA's weekly BV E-Letter, and teaches for both the ASA and the IBA. He writes and speaks extensively on BV issues.

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