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  • Partner, Eisner Advisory Group LLC
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Kenneth Weissenberg is a Tax Partner in the Real Estate Group, and serves as its Chair Emeritus. Ken has extensive experience encompasses all aspects of the real estate industry, ranging from developing tax saving strategies for owning and operating property to structuring and negotiating complex sales, acquisitions, and financing transactions. Ken has been involved in over $50 billion of real estate transactions over the last 30 years.

Providing expert insight from both the legal and business perspectives, Ken consults with a variety of public and private REITs on tax planning and compliance issues, including REIT formations, property contributions, and mergers and acquisitions. He serves a diverse client base that includes privately held and publicly traded real estate companies as well as prominent hotel and hospitality entities and world-renowned restaurants. Ken has also served as an expert witness and arbitrator in a number of complex litigations involving real estate issues. He represents the owners of some of the most well-known properties in New York City.

For more than 20 years, Ken has also been a leader in developing tax and advisory services for same-sex couples and families. He serves as the National Leader of the LGBT and Alternative Family Services Group. Ken assists with tax issues facing high net worth individuals, trust and estate planning and the impact of tax laws effecting both LGBT couples and the businesses where they work.

Ken is a frequent writer and speaker on topics for various professional groups and news organizations. Most recently, he was named to the 2020 Top Opportunity Zone Influencers in the Tax Specialists category by Opportunity Zone Magazine.



  • Real Estate
  • Trusts & Estates
  • Business Entity Tax
  • Hospitality
  • Family Office Services

Credentials & Education

  • Certified Public Accountant (CPA)
  • Yeshiva University Benjamin N. Cardozo School of Law: JD
  • New York University School of Law: LLM, Taxation


  • American Institute of Certified Public Accountants
  • New York State Society of Certified Public Accountants
  • American Bar Association
  • New York State Bar Association
  • Lambda Legal: Board Member; Audit Committee Chair
  • Family Equality Council: Emeritus Board Member

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