Practice Areas
Areas of Focus
- Investment Management
- Private equity
- Hedge funds
- Cross-border transactions
- US and cross-border taxation
- Assisting non-US professionals with US law
- Family office regulation
- Mediation and arbitration
Michael G. Tannenbaum
Partner tannenbaum@thsh.com 212-508-6701 LinkedIn Twitter
Practice Areas
Areas of Focus
- Investment Management
- Private equity
- Hedge funds
- Cross-border transactions
- US and cross-border taxation
- Assisting non-US professionals with US law
- Family office regulation
- Mediation and arbitration
Michael G. Tannenbaum
Practice Areas
Areas of Focus
- Investment Management
- Private equity
- Hedge funds
- Cross-border transactions
- US and cross-border taxation
- Assisting non-US professionals with US law
- Family office regulation
- Mediation and arbitration
Biography
Recognized as one of the top lawyers in the investment management field, Michael Tannenbaum is a multi-faceted business lawyer who advises on:
- Transactions: Private equity and portfolio M&A
- Emerging ideas: Venture capital, early stage angel investing and later round financing
- Investments: Hedge fund, private fund and individual managed accounts
- Regulatory: SEC and NFA, FINRA, cross-border compliance
- Wealth management: Family offices, charitable foundations and endowments assistance, governance, investment due diligence, co-investment rights and side letter negotiation
- US legal: US side of complex cross border matters
- Dispute resolution: Arbitration and mediation
Michael brings 40 years of experience to each matter. A portion of his work is cross-border, inbound US work from non-US sources such as non-US firms that need US advice for their clients, where we serve as the “US Office” for non-US firms. Another portion of Michael’s work is providing legal guidance to family office and ultra-high-net-worth individuals with regard to their investments. This includes red flag document reviews, due diligence, formation of blockers and side letter and co-investment right negotiation.
Outside of work, Michael founded and is president of Partners in Hearing, Inc., an IRS 501c3 public charity whose mission is to assist children with cochlear implants who are profoundly deaf get the supplemental care they need to be successful in the mainstream. For his pastime, Michael collects Marklin electric trains (HO scale), is sporadically working towards a certificate in horticulture at the NY Botanical Gardens.
Recent experience:
- Advised a large non US based family office located in Geneva and Singapore with its investment into a US-based technology company in Boston, successfully negotiated complex shareholders rights and various ancillary agreements, with a focus on anti-dilution.
- Conducted due diligence review of several private equity and venture investments which led to creating efficient tax blockers, negotiating co-investment rights and side letters that were crucial to the investor.
- Assisted in a complex JAMS mediation and arbitration with regard to placement agent fees allegedly due from a multi-billion dollar investment manager as a result of a successful capital raise.
- Advised a promising tech start up platform on its angel financing and Series A round financing, including details convertible preferred and warrant term sheet negotiation, document preparation and related advice.
- Assisted in the formation of cross-border private equity platform, private placement memo and related offering materials, addressing SEC issues and the like.
- Assisted in a complex and aggressive SEC investigation into the activities of a registered investment manager.
- Served as Chair of arbitration panel with regard to a complex commodities and futures dispute among numerous NFA members.
- Serve as Co-Trustee of a substantial trust established to benefit the needs of a family with a special needs child.
NYU Law School (LLM)
New York Law School (J.D.)
Fairleigh Dickinson (B.S.)
- Partner, Burns Jackson Miller Summit & Jacoby
- Associate and partner, Miller & Summit
- Associate, Hellerstein Rosier & Rembar
- New York
- United States Supreme Court
- United States Tax Court
- United States Court of Appeals for the Second Circuit
- Chambers and Partners USA Guide: USA-Nationwide, Hedge Funds (2018-2024)
- Chambers and Partners Global Guide: USA, Hedge Funds (2022-2024)
- With Intelligence Best Onshore Law Firm - Client Service (2024) - member of department
- Best Lawyers®, Private Funds / Hedge Funds Law (2007-2025)
- Super Lawyers® New York Metro Area, Business & Corporate, Securities & Corporate Finance, Estate Planning & Probate (2006-2024)
- International Who's Who of Private Fund Lawyers
- Martindale-Hubbell AV Preeminent Rating
- Forbes List
Professional:
- American Bar Association (ABA)
- Vice Chair, ABA Subcommittee on Hedge Funds 2008-2012
- Board Member and Membership Officer, International Bar Association, Asset Management and Investment Funds Committee
- New York State Bar Association
- Hedge Fund Association
- Connecticut Hedge Fund Association
- Fellow, Greenwich Roundtable
- International Bar Association, Organizing Committee and Officer, Globalisation of Investment Funds
Publications
- Are Entities in Your Private Fund Structure Reportable under FinCEN’s Beneficial Ownership Regulation?
- U.S. Court of Appeals Invalidates SEC’s Private Fund Adviser Rules
- SEC Adopts Modernizing Amendments to Regulation S-P to Enhance Protection of Customer Information
- SEC Division of Examinations Publishes Marketing Rule Risk Alert
- The SEC Wins First Insider Trading Case Based on So-Called “Shadow Trading” Theory
- Revised Dealer Rules
- Investment Fund Manager Update on Self-Employment Limited Partner Exception: Tax Court Holds that Limited Partners May Be Subject to Self-Employment Tax
- SEC Releases Examination Priorities for 2024
- Newly Formed Reporting Entities in 2024 Will Have 90 Days to Report Beneficial Ownership Information
- SEC Charges Five RIAs with Violations of Custody Rule
- SEC Adopts Final Rules on Private Fund Adviser Reforms
- SEC Charges RIA with Violations of Amended Marketing Rule
- Second Risk Alert on Marketing Rule Compliance
- New Form N-PX Reporting - A Practical Guide for Form 13F Filing Managers
- SEC Proposes Rule on Use of Predictive Data Analytics by Investment Advisers
- SEC Adopts Amendments to Form PF
- How the SEC’s Proposed New Safeguarding Rule May Impact Private Fund Advisers
- SEC Releases Examination Priorities for 2023
- SEC Risk Alert on New Marketing Rule
- Recent SEC ESG-Related Actions Impacting Investment Advisers and Investment Funds
- What are the SEC Examination Priorities for 2022?
- SEC Proposes Significant Changes to Regulation of Private Fund Advisers
- Form SHC (U.S. Ownership of Foreign Securities): Friday, March 4th filing deadline
- Coronavirus Update - SEC Issues Limited Form ADV and Form PF Filing Relief to Private Fund Managers
- Coronavirus Update – SEC Issues Limited Form ADV and Form PF Filing Relief to Investment Advisers
- SEC Approves Regulation Best Interest
- Top Six Advisory Fee and Expense Deficiencies Identified by OCIE
- SEC Announces 2018 Examination Priorities
- So You Want to Manage a Cryptocurrency Fund? U.S. Regulatory Rules to Consider First
- General Data Protection Regulation Affects Investment Advisors with EU Clientele
- “Who Is Who?” and “Who Owns Whom?”- Are You Ready for LEIs?
- SEC Amendments to Form ADV Effective on October 1, 2017
- How UCITS Funds Can Expand Their Investor Base into the US
- How to Setup a Hedge Fund – A US Perspective
- Regulatory Provisions in the US Affecting Non-US Investment Advisers
- How to Register as an Investment Adviser with the SEC and Selected Ongoing Compliance Obligations
- PATH Amendment to FIRPTA Affecting Non-US Pension Plan Investments in US Real Property
News
- Super Lawyers® Names 36 Tannenbaum Helpern Attorneys in 2024 New York City Metro Rankings • 10.24.2024
- Tannenbaum Helpern Recognized by With Intelligence at HFM US Services Awards 2024 • 09.16.2024
- Best Lawyers® Recognizes 24 Tannenbaum Helpern Attorneys in 2025 New York City Metro Rankings • 08.15.2024
- Tannenbaum Helpern’s Investment Management Practice Shortlisted by Hedgeweek in 2024 US Leadership Awards • 07.25.2024
- Tannenbaum Helpern’s Investment Management Practice Shortlisted by With Intelligence in 2024 Hedge Fund Management US Services Awards • 07.18.2024
- Tannenbaum Helpern Recognized by Chambers Global and Chambers USA • 06.06.2024
- Tannenbaum Helpern Recognized by Chambers USA: New York and Nationwide • 06.01.2023
- Tannenbaum Helpern Partner Michael Tannenbaum Recognized by Chambers Global: USA Hedge Funds 2023 • 02.16.2023
- Best Lawyers® Ranks 13 Tannenbaum Helpern Attorneys to 2023 New York City Metro Rankings • 08.17.2022
- 35 Tannenbaum Helpern attorneys recognized in Super Lawyers 2020 • 10.29.2020
- Best Lawyers 2021 recognizes 13 Tannenbaum Helpern attorneys • 08.26.2020
- 30 Tannenbaum Helpern attorneys recognized in Super Lawyers 2019 • 10.17.2019
- Best Lawyers 2020 recognizes nine Tannenbaum Helpern attorneys • 08.22.2019
- 26 Tannenbaum Helpern attorneys recognized in the 2018 New York Metro Super Lawyers list • 10.22.2018
- Tannenbaum Helpern is named “Best Boutique Law Firm” by HFMWeek • 09.24.2018
- Eight Tannenbaum Helpern attorneys selected to The Best Lawyers in America© 2019 • 08.20.2018
- Tannenbaum Helpern’s Co-Founding Partner Appointed To HFA Leadership • 03.19.2018
- 27 Tannenbaum Helpern Attorneys Recognized In The 2017 New York Metro Super Lawyers List • 09.20.2017
- Eight Tannenbaum Helpern Attorneys Included In The Best Lawyers In America© 2018 List • 08.17.2017
- 28 Tannenbaum Helpern Attorneys Selected To The 2016 New York Metro Super Lawyers List • 09.27.2016
- Five Tannenbaum Helpern Attorneys Included In The Best Lawyers© In America 2017 List • 08.17.2016
- Michael Tannenbaum Honored At The 9th Annual Help For Children’s New York Golf & Tennis Tournament • 07.26.2016
- 27 Tannenbaum Helpern Attorneys Selected To The 2015 New York Metro Super Lawyers List • 09.17.2015
- Tannenbaum Helpern Recognized As The “Most Outstanding Private Funds Law Firm” In The US • 07.20.2015
- Tannenbaum Helpern Recognized As Top Ranked US Law Firm • 04.13.2015
- Tannenbaum Helpern Syracuse & Hirschtritt LLP Recognized For Sustained Excellence In Hedge Fund Law • 03.19.2015
- 34 Tannenbaum Helpern Attorneys Have Been Selected To The 2014 New York Metro Super Lawyers List, Including Two Commercial Litigators In The Top 100 Super Lawyers List • 10.08.2014
- Four Tannenbaum Helpern Syracuse & Hirschtritt LLP Attorneys Named To Best Lawyers In America 2015 List • 09.10.2014
- Four Tannenbaum Helpern Syracuse & Hirschtritt LLP Attorneys Named To 2014 Best Lawyers® In America List • 08.15.2013
- Tannenbaum Helpern Helps Lead Global Network Designed To Aid Clients In Complex Cross-Border Financial Litigation • 07.11.2013
- Hedgeweek Names Tannenbaum Helpern Syracuse & Hirschtritt LLP The Best North American Law Firm For 2013 • 03.07.2013
- THSH Recognized In Super Lawyers, Best Lawyers, Avenue Magazine, Fortune, Lawyers World, The American Lawyer & Corporate Counsel • 10.02.2012
- 18 Tannenbaum Helpern Attorneys On The New York Metro Super Lawyers 2011 List • 10.25.2011
Events
- Virtual IBA Asset Management and Investment Funds Conference • 03.08.2021
- Regulatory responses and challenges to the crisis for the asset management industry | IBA webinar • 06.01.2020
- Current State of the Seeding Market Structures & Trends • 03.18.2020
- ESG and Impact Investing Mid-Year Outlook • 07.16.2019
- HFA Breakfast Briefing - Blockchain: Misconceptions and Investment Opportunities • 03.05.2019
- Swiss Alternative Investments Forum 2019 • 01.31.2019
- HFA Symposium: UK Policy Insights • 05.10.2018
- Hedge Fund Outlook 2017: What Does 2017 Have in Store for Emerging Managers? • 11.29.2016
- Emerging Managers Forum: How to Successfully Launch a Hedge Fund • 10.13.2016
- Hedge Fund Compliance • 10.06.2016
- Hedge Fund Outsourcing • 06.21.2016
- Insights into the SEC Exam Experience • 05.18.2016
- AIFMD and European Distribution Strategies • 02.23.2015
- US Regulatory and Insider Trading Developments • 02.05.2015
Recognized as one of the top lawyers in the investment management field, Michael Tannenbaum is a multi-faceted business lawyer who advises on:
- Transactions: Private equity and portfolio M&A
- Emerging ideas: Venture capital, early stage angel investing and later round financing
- Investments: Hedge fund, private fund and individual managed accounts
- Regulatory: SEC and NFA, FINRA, cross-border compliance
- Wealth management: Family offices, charitable foundations and endowments assistance, governance, investment due diligence, co-investment rights and side letter negotiation
- US legal: US side of complex cross border matters
- Dispute resolution: Arbitration and mediation
Michael brings 40 years of experience to each matter. A portion of his work is cross-border, inbound US work from non-US sources such as non-US firms that need US advice for their clients, where we serve as the “US Office” for non-US firms. Another portion of Michael’s work is providing legal guidance to family office and ultra-high-net-worth individuals with regard to their investments. This includes red flag document reviews, due diligence, formation of blockers and side letter and co-investment right negotiation.
Outside of work, Michael founded and is president of Partners in Hearing, Inc., an IRS 501c3 public charity whose mission is to assist children with cochlear implants who are profoundly deaf get the supplemental care they need to be successful in the mainstream. For his pastime, Michael collects Marklin electric trains (HO scale), is sporadically working towards a certificate in horticulture at the NY Botanical Gardens.
Recent experience:
- Advised a large non US based family office located in Geneva and Singapore with its investment into a US-based technology company in Boston, successfully negotiated complex shareholders rights and various ancillary agreements, with a focus on anti-dilution.
- Conducted due diligence review of several private equity and venture investments which led to creating efficient tax blockers, negotiating co-investment rights and side letters that were crucial to the investor.
- Assisted in a complex JAMS mediation and arbitration with regard to placement agent fees allegedly due from a multi-billion dollar investment manager as a result of a successful capital raise.
- Advised a promising tech start up platform on its angel financing and Series A round financing, including details convertible preferred and warrant term sheet negotiation, document preparation and related advice.
- Assisted in the formation of cross-border private equity platform, private placement memo and related offering materials, addressing SEC issues and the like.
- Assisted in a complex and aggressive SEC investigation into the activities of a registered investment manager.
- Served as Chair of arbitration panel with regard to a complex commodities and futures dispute among numerous NFA members.
- Serve as Co-Trustee of a substantial trust established to benefit the needs of a family with a special needs child.
NYU Law School (LLM)
New York Law School (J.D.)
Fairleigh Dickinson (B.S.)
- Partner, Burns Jackson Miller Summit & Jacoby
- Associate and partner, Miller & Summit
- Associate, Hellerstein Rosier & Rembar
- New York
- United States Supreme Court
- United States Tax Court
- United States Court of Appeals for the Second Circuit
- Chambers and Partners USA Guide: USA-Nationwide, Hedge Funds (2018-2024)
- Chambers and Partners Global Guide: USA, Hedge Funds (2022-2024)
- With Intelligence Best Onshore Law Firm - Client Service (2024) - member of department
- Best Lawyers®, Private Funds / Hedge Funds Law (2007-2025)
- Super Lawyers® New York Metro Area, Business & Corporate, Securities & Corporate Finance, Estate Planning & Probate (2006-2024)
- International Who's Who of Private Fund Lawyers
- Martindale-Hubbell AV Preeminent Rating
- Forbes List
Professional:
- American Bar Association (ABA)
- Vice Chair, ABA Subcommittee on Hedge Funds 2008-2012
- Board Member and Membership Officer, International Bar Association, Asset Management and Investment Funds Committee
- New York State Bar Association
- Hedge Fund Association
- Connecticut Hedge Fund Association
- Fellow, Greenwich Roundtable
- International Bar Association, Organizing Committee and Officer, Globalisation of Investment Funds
- Are Entities in Your Private Fund Structure Reportable under FinCEN’s Beneficial Ownership Regulation?
- U.S. Court of Appeals Invalidates SEC’s Private Fund Adviser Rules
- SEC Adopts Modernizing Amendments to Regulation S-P to Enhance Protection of Customer Information
- SEC Division of Examinations Publishes Marketing Rule Risk Alert
- The SEC Wins First Insider Trading Case Based on So-Called “Shadow Trading” Theory
- Revised Dealer Rules
- Investment Fund Manager Update on Self-Employment Limited Partner Exception: Tax Court Holds that Limited Partners May Be Subject to Self-Employment Tax
- SEC Releases Examination Priorities for 2024
- Newly Formed Reporting Entities in 2024 Will Have 90 Days to Report Beneficial Ownership Information
- SEC Charges Five RIAs with Violations of Custody Rule
- SEC Adopts Final Rules on Private Fund Adviser Reforms
- SEC Charges RIA with Violations of Amended Marketing Rule
- Second Risk Alert on Marketing Rule Compliance
- New Form N-PX Reporting - A Practical Guide for Form 13F Filing Managers
- SEC Proposes Rule on Use of Predictive Data Analytics by Investment Advisers
- SEC Adopts Amendments to Form PF
- How the SEC’s Proposed New Safeguarding Rule May Impact Private Fund Advisers
- SEC Releases Examination Priorities for 2023
- SEC Risk Alert on New Marketing Rule
- Recent SEC ESG-Related Actions Impacting Investment Advisers and Investment Funds
- What are the SEC Examination Priorities for 2022?
- SEC Proposes Significant Changes to Regulation of Private Fund Advisers
- Form SHC (U.S. Ownership of Foreign Securities): Friday, March 4th filing deadline
- Coronavirus Update - SEC Issues Limited Form ADV and Form PF Filing Relief to Private Fund Managers
- Coronavirus Update – SEC Issues Limited Form ADV and Form PF Filing Relief to Investment Advisers
- SEC Approves Regulation Best Interest
- Top Six Advisory Fee and Expense Deficiencies Identified by OCIE
- SEC Announces 2018 Examination Priorities
- So You Want to Manage a Cryptocurrency Fund? U.S. Regulatory Rules to Consider First
- General Data Protection Regulation Affects Investment Advisors with EU Clientele
- “Who Is Who?” and “Who Owns Whom?”- Are You Ready for LEIs?
- SEC Amendments to Form ADV Effective on October 1, 2017
- How UCITS Funds Can Expand Their Investor Base into the US
- How to Setup a Hedge Fund – A US Perspective
- Regulatory Provisions in the US Affecting Non-US Investment Advisers
- How to Register as an Investment Adviser with the SEC and Selected Ongoing Compliance Obligations
- PATH Amendment to FIRPTA Affecting Non-US Pension Plan Investments in US Real Property
- Super Lawyers® Names 36 Tannenbaum Helpern Attorneys in 2024 New York City Metro Rankings • 10.24.2024
- Tannenbaum Helpern Recognized by With Intelligence at HFM US Services Awards 2024 • 09.16.2024
- Best Lawyers® Recognizes 24 Tannenbaum Helpern Attorneys in 2025 New York City Metro Rankings • 08.15.2024
- Tannenbaum Helpern’s Investment Management Practice Shortlisted by Hedgeweek in 2024 US Leadership Awards • 07.25.2024
- Tannenbaum Helpern’s Investment Management Practice Shortlisted by With Intelligence in 2024 Hedge Fund Management US Services Awards • 07.18.2024
- Tannenbaum Helpern Recognized by Chambers Global and Chambers USA • 06.06.2024
- Tannenbaum Helpern Recognized by Chambers USA: New York and Nationwide • 06.01.2023
- Tannenbaum Helpern Partner Michael Tannenbaum Recognized by Chambers Global: USA Hedge Funds 2023 • 02.16.2023
- Best Lawyers® Ranks 13 Tannenbaum Helpern Attorneys to 2023 New York City Metro Rankings • 08.17.2022
- 35 Tannenbaum Helpern attorneys recognized in Super Lawyers 2020 • 10.29.2020
- Best Lawyers 2021 recognizes 13 Tannenbaum Helpern attorneys • 08.26.2020
- 30 Tannenbaum Helpern attorneys recognized in Super Lawyers 2019 • 10.17.2019
- Best Lawyers 2020 recognizes nine Tannenbaum Helpern attorneys • 08.22.2019
- 26 Tannenbaum Helpern attorneys recognized in the 2018 New York Metro Super Lawyers list • 10.22.2018
- Tannenbaum Helpern is named “Best Boutique Law Firm” by HFMWeek • 09.24.2018
- Eight Tannenbaum Helpern attorneys selected to The Best Lawyers in America© 2019 • 08.20.2018
- Tannenbaum Helpern’s Co-Founding Partner Appointed To HFA Leadership • 03.19.2018
- 27 Tannenbaum Helpern Attorneys Recognized In The 2017 New York Metro Super Lawyers List • 09.20.2017
- Eight Tannenbaum Helpern Attorneys Included In The Best Lawyers In America© 2018 List • 08.17.2017
- 28 Tannenbaum Helpern Attorneys Selected To The 2016 New York Metro Super Lawyers List • 09.27.2016
- Five Tannenbaum Helpern Attorneys Included In The Best Lawyers© In America 2017 List • 08.17.2016
- Michael Tannenbaum Honored At The 9th Annual Help For Children’s New York Golf & Tennis Tournament • 07.26.2016
- 27 Tannenbaum Helpern Attorneys Selected To The 2015 New York Metro Super Lawyers List • 09.17.2015
- Tannenbaum Helpern Recognized As The “Most Outstanding Private Funds Law Firm” In The US • 07.20.2015
- Tannenbaum Helpern Recognized As Top Ranked US Law Firm • 04.13.2015
- Tannenbaum Helpern Syracuse & Hirschtritt LLP Recognized For Sustained Excellence In Hedge Fund Law • 03.19.2015
- 34 Tannenbaum Helpern Attorneys Have Been Selected To The 2014 New York Metro Super Lawyers List, Including Two Commercial Litigators In The Top 100 Super Lawyers List • 10.08.2014
- Four Tannenbaum Helpern Syracuse & Hirschtritt LLP Attorneys Named To Best Lawyers In America 2015 List • 09.10.2014
- Four Tannenbaum Helpern Syracuse & Hirschtritt LLP Attorneys Named To 2014 Best Lawyers® In America List • 08.15.2013
- Tannenbaum Helpern Helps Lead Global Network Designed To Aid Clients In Complex Cross-Border Financial Litigation • 07.11.2013
- Hedgeweek Names Tannenbaum Helpern Syracuse & Hirschtritt LLP The Best North American Law Firm For 2013 • 03.07.2013
- THSH Recognized In Super Lawyers, Best Lawyers, Avenue Magazine, Fortune, Lawyers World, The American Lawyer & Corporate Counsel • 10.02.2012
- 18 Tannenbaum Helpern Attorneys On The New York Metro Super Lawyers 2011 List • 10.25.2011
- Virtual IBA Asset Management and Investment Funds Conference • 03.08.2021
- Regulatory responses and challenges to the crisis for the asset management industry | IBA webinar • 06.01.2020
- Current State of the Seeding Market Structures & Trends • 03.18.2020
- ESG and Impact Investing Mid-Year Outlook • 07.16.2019
- HFA Breakfast Briefing - Blockchain: Misconceptions and Investment Opportunities • 03.05.2019
- Swiss Alternative Investments Forum 2019 • 01.31.2019
- HFA Symposium: UK Policy Insights • 05.10.2018
- Hedge Fund Outlook 2017: What Does 2017 Have in Store for Emerging Managers? • 11.29.2016
- Emerging Managers Forum: How to Successfully Launch a Hedge Fund • 10.13.2016
- Hedge Fund Compliance • 10.06.2016
- Hedge Fund Outsourcing • 06.21.2016
- Insights into the SEC Exam Experience • 05.18.2016
- AIFMD and European Distribution Strategies • 02.23.2015
- US Regulatory and Insider Trading Developments • 02.05.2015