The five boroughs of New York City

Staten Island

Long Island

Nassau County
Suffolk County

Westchester County
Rockland County

Who Are Our Clients?

Trust, Estate & Probate Attorneys
Estate Executors
Divorce Lawyers
Banks and Loan Institutions
Insurance Companies
Corporate Art Managers
Art Galleries
Antique and Art Collectors


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Sheridan Appraisers and Asset Liquidation of New York, LLC
Cooper Station, P.O. Box 550
New York, NY 10276-0550
Phone: (917) 445-4184

about us

About the Tri-State & NYC Property Appraisers and Asset Liquidators


Ronald Sheridan, Founder and Senior Appraiser

Ronald Sheridan has been a fixture in the New York area estate appraisal and asset liquidation market for over 35 years. Throughout the 1980’s and 1990’s, he was the lead appraiser and asset sales manager for Attic Treasures and later worked as an independent contractor and consultant. He has contracted directly with, and consulted for many of the top law firms, accounting agencies and worked with individual estate executors throughout the tri-state area. Recognized as an authority on personal property, Ronald is proficient in the areas of antiquities, antiques, decorative arts, jewelry, books, photography, stamps and coins, high fashion and textiles, fine art, 20th century modern, 19th and 20th century collectibles. Ronald’s relationship with collectors, dealers and auction houses throughout the U.S. and Europe is comprehensive and wide ranging.

Robert Cowell, Managing Partner - Appraisals and Sales

Robert Cowell is responsible for business management, high-end sales, appraisal report production, research and USPAP compliance.  Prior to joining Sheridan Appraisers and Asset Liquidation of New York, LLC he spent 18 years in the interior design industry where he developed a hands-on expertise in the areas of antiques, furniture, textiles, lighting, and fine art, as well as sales and business management.  Robert has developed relationships with many of the country's top interior designers and architects as well as owners of high-end showrooms, art galleries and auction houses.  Robert earned an appraisal certificate from Pratt Institutes certification program curriculum, (instructors and materials provided by American Society of Appraisers) and a Connoisseur-ship in Fine and Decorative arts from Pratt.  Through this extensive and rigorous program, Robert learned the most up-to-date appraisal service methodology and techniques and has brought this knowledge to Sheridan Appraisers and Asset Liquidation of New York.  Robert has completed the 15 hours USPAP course and passed the  USPAP proficiency test, re-certified June, 2015.

Association Membership: Candidate, American Society of Appraisers



MEMORIAL    Anna (Jessie) Kane-Sheridan, Co-founder

Anna passed away on August 1, 2017 after her courageous battle with pancreatic cancer.  We will miss this wonderful soul greatly.

Jessie Kane began her career as a textiles designer and spent several years as a professional within the New York Fashion Industry prior to joining Astor Galleries as an assistant appraiser in 1994. As co-founder of Sheridan Appraisal and Asset Liquidation of New York, LLC she contributes in the areas of appraisals, personal property research, family outreach, asset liquidation and sales.  Jessie has extensive experience working with her contacts in the clothing consignment and jewelry industries and has developed strong professional relationships with many of the experts at Christie's, Sotheby's and Doyle auction houses as resources for sales and research.  Her warm and sincere nature is notable and appreciated by both clients and industry professionals alike.



For more information about our services, contact us today!