Diana Wierbicki

Partner | New York

Secretary Lauren Parisi


Track record

Exchange agreements

Preparing complex like-kind exchange agreements involving works of art.

Sales and purchases

Negotiating multi-million dollar sales and purchases by museums, collectors and dealers, and addressing related sales and use tax issues.

Complex gift structure

Structuring complex gifts involving works of art.

Auction purchases

Advising on the auction purchases of works breaking record prices.

Tax investigations and audits

Assisting with New York use tax investigations and audits.

Appraisal and consignment agreements

Negotiating appraisal and consignment agreements with the major auction houses.

Private sale transactions

Negotiating U.S. based and international private sale transactions.

Museum loan agreements

Negotiating loan agreements with over one hundred museums and other institutions around the world.


  • 'Family Office Roundtable - An Art Collectors Routable,' Citi Private Bank - September 22, 2021, speaker

  • 'Using Art as Collateral: A Guide to Art Secured Loans, Advances and Financing Solutions for Collectors,' Sotheby's CLE Panel - May 18, 2021, presenter

  • ‘Charitable Donations of Art: Advising the Donor and Donee,' New York City Bar Association Nonprofit Committees CLE program - May 12, 2021, co-presenter

  • 'Withers talks: cryptocurrency | Ep 6 - How NFTs are shaking up the art and music world,' Withers podcast - April 22, 2021, speaker

  • 'Presentation to American Bar Association,' ABA - April 29, 2021, speaker

  • 'What To Do With All This Stuff: Administering an Estate with Art and Collectibles,' ABA Section of Real Property, Trust & Estate Law's 33rd Annual National CLE Conference - April 21, 2021, speaker

  • 'Legal Issues of Museum Administration,' Withers will sponsored conference on museum administration - March 11, 2021, speaker

  • 'Consignment and Loan Agreement,' DeWitt Stern Panel - February 25, 2021, speaker

  • 'DeWitt Stern private clients panel,' DeWitt Stern Panel - February 17, 2021, speaker

  • 'Consignment and Loan Agreement,' DeWitt Stern Panel - February 11, 2021, speaker

  • 'Fiduciary Responsibility Related to Art Assets Panel,' Trust & Estates - January 14, 2021 - speaker

  • 'Art Law Day 2020 - Art Market Developments,' Appraisers Association of America, Inc., New York, New York - November 6, 2020, moderator

  • Hot Topics in Art Law 2020,' New York City Bar - October 1, 2020, speaker

  • 'Art Law Day 2019,' Appraisers Association of America, Inc., New York, New York - November 8, 2019, moderator

  • 'Withers talks: art | Art: Are you globally mobile?,' Withers podcast - September 19, 2019, host

  • 'Posthumous Production: Why, When, How, and Who Decides?,' 2019 Artist-Endowment Foundation Leadership Forum - November 6, 2019, speaker

  • 'UK Issues impacting US Galleries,' Withers Event (New York) - November 4, 2019, moderator

  • 'Hot Topics in Art Law 2019,' New York City Bar - October 24, 2019, speaker

  • 'Art as an Alternative Investment: Factors That Drive Art Valuation,' Columbia Business School Alumni Club of NY Event - October 14, 2019, speaker

  • 'US Issues affecting UK Galleries,' Rawlinson & Hunter Event (London) - July 2, 2019, speaker

  • 'How technology has impacted provenance and authenticity in the art market,' Masterpiece Art Fair (London) - July 2, 2019, speaker

  • 'Your Art Collection and the Law - Part Two: What do you need to know to Protect it?,' Harvard Business School Club of NY - May 22, 2019, speaker

  • 'Evolution of collector involvement in the art market,' First Annual UBP Investment Advisors S.A. Conference - May 17, 2019, speaker

  • 'Art transactions: Hidden risks,' Withers event (New York) - January 24, 2019, moderator

  • 'Blockchain and the private client,' California Lawyers Association webinar - January 9, 2019, speaker

  • ‘New Tech on the Block: Blockchain + the Arts,' New York City Bar - November 12, 2018, speaker

  • 'Estate Planning Strategies for Art and Collectibles,' Trusts & Estates at Bonhams - November 1, 2018, speaker

  • 'Hot Topics in Art Law 2018: The Legal Implications of Emerging Technologies,' New York City Bar - October 30, 2018, speaker

  • 'Blockchain: Is it the Answer to the Market's Inefficiencies?' Appraisers Association Art Law Day - October 26, 2018, moderator

  • 'The Finance of Art', JP Morgan event - June 25, 2018, speaker

  • 'Smart strategies for collection building', Art Expo Chicago - September 2017, speaker

  • 'When art is gray: Shaking your client's etch-a-sketch', ABA Conference - April 20, 2017, speaker

  • 'Art and philanthropy: a panel discussion,' Withers in-house event - March 2017, speaker

  • 'Managing Inherited Art and Encouraging Clients to Plan Ahead,' Heckerling Institute on Estate Planning, Orlando, FL - January 11, 2017

  • 'Legal Issues in Art Collecting: Acquisition Ownership and Disposition,' Art Basel Miami Beach / STEP Miami, Miami, FL - November 28, 2016, panelist

  • 'Getting It,' Withers Bergman Women & Wealth Forum, New York, NY - November 14, 2016, panelist

  • 'Art in the Estate Plan - The Providence of Provenance: What Every Estate Planner Needs to Know about Authenticity, Good Title and Provenance,' American Bar Association's Real Property, Trust and Estates Section's Spring Symposia, Boston, Massachusetts - May 2016

  • 'The Four Stages of Collecting - Part II: Legal and Tax Issues,' One Art Nation - April 2016

  • 'Art Law 360°,' Pictet, Hong Kong - March 2016

  • Art Law Day 2015, Appraisers Association of America, Inc., New York, New York - November 2015

  • 'Art: How to Love It and Leverage It,' J.P. Morgan Private Bank, Greenwich, Connecticut - May 2015

  • 'Symposium on Law and Art as Investment,' Cardozo Art Law Society and Cardozo Business Law Society, New York, New York - April 2015

  • 'Art as an Alternative Investment Class for Institutional Investors - Art Funds and Other Forms of Art Investment and Certain Related Legal Issues,' International Bar Association Conference: Pure Love of Art versus Mere Investment, London, UK - March 2015

  • 'The Art of Transferring Art: Provocative Insights on Art Succession,' Society of Trust and Estate Practitioners (STEP), Los Angeles, California - January 2015

  • 'IRS/1031 Tax Free Exchange,' Art Law Day at the Appraisers Association of America's Annual Conference, New York, New York - November 2014

  • The Armory Show 2013 Centennial Dinner, New York, New York - March 5, 2013, keynote speaker