THE TEAM

Qualified Professionals

Our staff members belong to the Appraisers Association of America, the New England Appraisers’ Association, and/or the Gemological Institute of America. Our in-house staff is assisted by a network of experts in museums, galleries, and universities who serve as advisers in specialized areas.  The principal of Abigail Hartmann Associates, Gayle M. Skluzacek, AAA, wrote the USPAP certification test and has taught appraisal ethics courses at many universities and auction houses including; Sothebys, Phillips, Doyle, Skinner, Heritage, Freemans, and Bonhams.

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Gayle Skluzacek

Principal Appraiser

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Denise Sheehan

Associate Appraiser

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Richard Saidon

Jewelry Appraiser & Consultant 

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Kay Brubeck-Ziegler

Florida Representative & Generalist 

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Nora Mazur

Decorative Arts Appraiser & Consultant

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Kayla Clark

Accounts Manager

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Isabella Lugo

Research Associate

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William Avis 

Research Associate

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