Tobias Czudej is an appraiser serving families, institutions, and their legal and financial representatives on valuation matters in Modern, Post-War, Contemporary, and Emerging Art. His practice focuses on significant charitable donations, litigation support, and collection management for private collectors and family trusts, with particular expertise in works presenting complex attribution, provenance, or market data considerations. Regularly engaged on valuations of works exceeding $10 million.

Prior to appraisal, Tobias spent six years in blue-chip galleries, beginning at Gagosian Gallery before running the London Soho location for Pace, where he organized exhibitions featuring works by Cy Twombly, Mike Kelley, Robert Rauschenberg, Mark Rothko, Alexander Calder, and Claes Oldenburg. His curatorial practice encompasses over thirty exhibitions at institutions and commercial galleries internationally, with coverage in publications including Art Forum, The Guardian, The Wall Street Journal, and The Sunday Times.

Tobias is a Certified Member of the Appraisers Association of America, where he serves on the Board of Directors. He speaks regularly on art and valuation, with recent presentations at Yale University, University of Hong Kong, Deloitte Private, and the Appraisers Association of America National Conference. He is co-author of "Appraisal Review" in Appraising Art: The Definitive Guide (2024).

Susan McDonough AAA is a fine art appraiser and a Certified Member of the Appraisers Association of America. She is admitted in the categories of Postwar, Contemporary & Emerging Art, Impressionist & Modern Art, American Art, Photography, and Prints. In 2009, she established McDonough Fine Art Appraisals LLC, which merged with Czudej LLC in 2023 to form Czudej McDonough.

As a a fine art appraiser, Susan has deep and extensive experience appraising artwork at the highest levels of the art market for insurance, donation, and tax & estate planning purposes. She is an internationally recognized expert on appraisal methodology. She lectures and publishes on the topic regularly. Susan enjoys working on complex assignments and serving as an expert witness in art-related disputes. She performs appraisal review work regularly for audit and assurance purposes.

Susan is a past member of the Appraisers Association of the Board of Directors (2014–2021) and a recipient of the Association’s Regional Service Award in 2013. She is an AQB certified USPAP instructor and currently teaches USPAP on behalf of the Appraisers Association. She also teaches the Association's Appraisal Writing Workshop for its core methodology courses and CASP program. Susan previously taught as an Adjunct Instructor at New York University's Appraisal Studies Program (2014–2017). She is a member of ArtTable and the Association of Registrars and Collection Specialists (ARCS).

An experienced editor and published writer, Susan was the Managing Editor for the Appraiser Association’s 2024 publication “Appraising Art: The Definitive Guide” and co-authored the article on “Appraisal Review”. Susan is recognized for her expertise in the valuation of site-specific and public art as well as the art of California. Her article “Public Art” was included in the 2024 Appraisers Association’s Definitive Guide and her article on “California Art” was published in the 2013 edition.

A graduate of Columbia University, New York, Susan has a B.A. in Art History and Latin American studies. She began her professional career at New York’s CDS Gallery, run by the pioneering Latin American Art dealer Clara Diament Sujo, and The Americas Society. She subsequently worked at Abbeville Press, Rizzoli, and HarperCollins prior to moving to San Francisco in 1998.

In San Francisco, Susan spent six years as the Director of Publications and Press Relations at Hackett-Freedman Gallery, where she commissioned catalogues on artists such as David Park, Louise Nevelson, and Patrick Heron, among many others. She later worked as a fine art appraiser at Montgomery Gallery, one of the premier galleries for nineteenth and twentieth century European and American art in the United States. In 2009, she established McDonough Fine Art Appraisals LLC, which merged with Czudej LLC in 2023.

Sacha Q Grippando, GG, AAA, is a certified jewelry and watch appraiser and a member of the Appraisers Association of America (AAA) with more than twenty-five years of experience in the auction and appraisal industry. Sacha has worked for Sotheby’s, Bonhams, Hindman, and Freeman’s.

She received her graduate gemology degree from the Gemological Institute of America (GIA) in 2018. As a a certified jewelry and watch appraiser, Sacha works with individuals, families, trustees, financial and other fiduciary professionals to appraise and evaluate their jewelry and timepieces.

She has continued her gemological and jewelry education with multiple courses through the GIA and Christie’s Education. She lectures frequently on jewelry history and has written articles on jewelry and timepieces for Antique Jewelry University and the Appraisers Association.

Rachel is a certified generalist appraiser and member of the Appraisers Association of America (AAA). She appraises household contents, antiques, decorative arts, silver, and a fine porcelain and china.

Rachel began working with antique dealers in Amherst, MA while pursuing her BA in Art History and Theory at Hampshire College. After college she worked with art dealers, an artist’s estate, and a major museum in New York City, before moving to Albuquerque for her MA in Art History and the History of Photography from the University of New Mexico.

For the past 25 years, she has worked with multiple auction houses and as an appraiser in the San Francisco Bay Area. As a generalist appraiser, she specializes in the documentation and valuation of large collections, including the entire personal property inventory of homes and estates, and especially enjoys finding and working with specialists in any category a project requires. Rachel has a particular interest in normalizing estate planning and equitable distribution. She splits her work and time between the San Francisco area, New England, and New York.