David Hirsberg's practice focuses exclusively on matters relating to the US tax code and cross-border or international tax matters. This includes advising high net-worth families with family members or financial interests in multiple jurisdictions as well as the financial institutions serving that sector of the market solely with respect to such tax matters. In advising families, Mr. Hirsberg is heavily involved in foreign grantor trust planning, addressing the myriad of issues commonly encountered with foreign nongrantor trusts and underlying holding vehicles, US inbound/outbound investment structuring, and US pre-immigration and expatriation planning, all relating exclusively to the US tax code and cross-border or international tax matters. In those tax areas, Mr. Hirsberg also regularly advises on the qualified intermediary rules as well as FATCA.

In counseling financial institutions, Mr. Hirsberg regularly advises on "best practice" policies and procedures under the US tax code and cross-border or international tax provisions, intended to minimize risks and capitalize on opportunities when transacting business with US persons. He has also been heavily involved in advising clients on the IRS Voluntary Disclosure programmes, and is a frequent speaker on US tax and succession planning topics.

Before joining the firm, Mr. Hirsberg practiced in Hong Kong, Zurich and Geneva, where he focused exclusively on cross-border tax issues.


Legal Week
Private Client Global Elite List (2018)
Leaders List (2012, 2015, 2018)
Lawyer Monthly
"Solicitor of the Year" – Cross-Border Estates (US) (2017)


  • LLM, New York University School of Law
  • JD, Washington and Lee University School of Law
  • BS, Harvard University
  • Florida
  • Member, Society of Trust and Estate Practitioners


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