10 Block legal leaders
Alyson Danner, General Counsel, US Products at Block, is the most senior current person on this list of ten Block legal leaders, which also has deputy general counsels and heads of corporate legal, product counsel and legal for Square Financial Services and for Canada and Europe. A reader can learn how legal leaders work at Block from people who have held the role.
Professionals to explore
Alexa Lawson-Remer
LinkedInExperience: Former Head of Regulatory Legal · Block
Alexa Lawson-Remer is a former Block legal leader who was Head of Regulatory Legal at Block from September 2024 to March 2026, based in Los Angeles, California. Alexa Lawson-Remer was SVP, Risk Strategy & Governance at City National Bank from 2022 to 2024 and Special Counsel at Sullivan & Cromwell LLP from 2009 to 2022.
Alyson Danner
LinkedInExperience: General Counsel, US Products · Block
Alyson Danner has been General Counsel, US Products at Block since February 2025 and also lists a General Counsel, Cash App row at Block from September 2024 to March 2025, based in Fort Mill, South Carolina. Alyson Danner was Associate General Counsel Managing Director at Bank of America from 2010 to 2024.
Andrew Trafford
LinkedInExperience: Head of Product Counsel, Cash App · Block
Andrew Trafford has been Head of Product Counsel, Cash App at Block since February 2022, based in San Francisco, California. Andrew Trafford was Product Counsel Lead, Cash App (2021 to 2022) and Product Counsel - Cash App (2018 to 2021) at Square, and was Corporate Counsel, Investor Group at LendingClub from 2016 to 2018.
Harry Kastenbaum
LinkedInExperience: Head of Legal at Square Financial Services, Inc. and Builders Bank & Trust, N.A. (Proposed) · Block
Harry Kastenbaum has been Head of Legal at Square Financial Services, Inc. and Builders Bank & Trust, N.A. (Proposed) at Block since September 2026, and has held a Head of Legal at Square Financial Services, Inc. and Head of Banking Regulatory at Block, Inc. row since February 2025, based in New York. Harry Kastenbaum was Head of Bank Regulatory at Square Financial Services, Inc. from 2021 to 2025.
Julianne Harper
LinkedInExperience: Head of Product Counsel, Square · Block
Julianne Harper has been Head of Product Counsel, Square at Block since March 2022, based in Oakland, California. Julianne Harper's profile headline reads Head of Product Counsel, Square | Ex-WilmerHale; ex-eBay, and the listing shows no other work rows for Julianne Harper.
Martin White
LinkedInExperience: Former Head of Litigation · Block
Martin White is a former Block legal leader who was Head of Litigation at Block from November 2022 to April 2026 and also from 2017 to 2022, based in the San Francisco Bay Area. Martin White has been General Counsel at Rippling since April 2026, and was Head of Litigation & Employment at OpenSea in 2022 and Senior Counsel, Litigation at Uber from 2015 to 2017.
Rebecca Sergay
LinkedInExperience: Deputy General Counsel & Business Affairs @ Tidal · Block
Rebecca Sergay has been Deputy General Counsel & Business Affairs @ Tidal at Block since January 2025, based in Atlanta, Georgia. Rebecca Sergay also lists Vice President, Legal & Business Affairs - TIDAL (2024 to 2025), Vice President, Commercial Counsel Lead and Business Affairs - TIDAL (2023 to 2024) and Vice President, Commercial Counsel and Business Affairs - TIDAL (2021 to 2023) rows at Block.
Saleha Ali
LinkedInExperience: Head of Legal, Canada and Europe · Block
Saleha Ali has been Head of Legal, Canada and Europe at Block since March 2026, based in New York, New York. Saleha Ali was Head of Legal, Canada & International Licensing at Block from February 2025 to March 2026 and International Counsel, Canada there from 2021 to 2025, and was Senior Legal Counsel & Senior Governance Advisor at Interac Corp. from 2020 to 2021.
Shahzia Rahman
LinkedInExperience: Head of Corporate Legal, Assistant Corporate Secretary · Block
Shahzia Rahman has been Head of Corporate Legal, Assistant Corporate Secretary at Block since December 2021 and lists the same title at Square starting in September 2018, based in San Francisco, California. Shahzia Rahman was Assistant General Counsel, Assistant Corporate Secretary and Director, Corporate Legal at Juniper Networks from 2016 to 2018.
Vishal Dave
LinkedInExperience: Deputy General Counsel, Corporate M&A, Investments and Antitrust · Block
Vishal Dave has been Deputy General Counsel, Corporate M&A, Investments and Antitrust at Block since April 2022, based in Moraga, California, and also lists a Counsel Lead, Mergers & Acquisitions and Antitrust row at Square starting in 2018 with no end date. Vishal Dave was Corporate Counsel at Square in 2018 and Associate at Fenwick & West from 2012 to 2018.
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Match the person's practice area, such as corporate, product, banking regulatory, litigation or international work, to the question you need answered. Check whether each person's Block role is current or ended to judge how recent their view of the work is.
Questions to take into the conversation
- 01Which kinds of matters took up most of your time in your Block legal role, and how did you set priorities?
- 02How did you work with business colleagues when a legal question affected their plans?
- 03What experience from your earlier career turned out to matter most in the role, and what surprised you?
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.