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Sadaf Tabatabai Associate

San Francisco

Sadaf is an associate in the General Litigation group of Orrick's San Francisco office.



  • Cyber, Privacy & Data Innovation
  • Technology Companies Group
  • Internet of Things
  • CCPA and California Privacy Law

Emily S. Tabatabai Partner Cyber, Privacy & Data Innovation, Technology Companies Group

Washington, D.C.; Houston

Emily S. Tabatabai is a partner and founding member of the Cyber, Privacy & Data Innovation practice, which was named Privacy/Data Security Law Firm of the Year by Chambers USA in 2019. She has been recognized by The Legal 500 for her "extraordinary depth of knowledge in student data privacy matters," and by Chambers USA as "an invaluable resource to have when it comes to data privacy and security." 

Emily advises clients on an array of privacy and data management matters, helping clients navigate the complex web of privacy laws, rules, regulations and best practices governing the collection, use, transfer and disclosure of data and personal information. Emily works closely with client business teams and in-house counsel to assess and manage privacy risks, design and deploy compliance programs and implement privacy-by-design approaches to address key compliance objectives while supporting each client’s data innovation strategies and the development and use of cutting-edge digital technologies. She frequently guides child- and student-directed service providers through the complexities of compliance with the Children’s Online Privacy Protection Act (COPPA), the Family Educational Rights and Privacy Act (FERPA), California’s Student Online Personal Information Protection Act (SOPIPA) and similar state student privacy laws and advises companies across the industry spectrum as they work towards compliance with the California Consumer Privacy Act (CCPA). She also represents clients subject to regulatory investigations and litigation involving a spectrum of federal and state laws, including under Section 5 of the Federal Trade Commission Act (FTC Act), COPPA, the Fair Credit Reporting Act (FCRA), Gramm-Leach-Bliley Act (GLBA), the California Online Privacy Protection Act (CalOPPA) and others.

To make the CCPA more accessible, Emily developed Orrick's CCPA Readiness Assessment Tool. The tool provides companies an opportunity to test their compliance with the CCPA and similar laws as a first step to constructing their strategic compliance roadmap.

Emily also has an active consumer protection practice, focused on marketing and promotional issues. She counsels clients on interest-based advertising, sweepstakes and marketing promotions, retail sales and e-commerce platforms, advertising substantiation, new media and social media integration, and SMS text messaging and telemarketing, including matters involving the Telemarketing Sales Rule (TSR), the Telephone Consumer Protection Act (TCPA), the Restore Online Shoppers’ Confidence Act (ROSCA) and state and federal consumer protection statutes.

Emily is a Certified Information Privacy Professional in both U.S. and European privacy law (CIPP/US and CIPP/E) and member of the International Association of Privacy Professionals (IAPP) Publications Advisory Board. She is a frequent speaker on data privacy matters, with a particular focus on children’s privacy (COPPA), student data privacy and EdTech. She was featured as an “Up and Coming” Privacy & Data Security attorney by Chambers USA 2018, 2019, and 2020 and Chambers Global – USA 2020. Clients tell Chambers,“she's been an excellent partner. She has a very good understanding of the practical realities of implementing privacy policies for large companies.” Citing her expertise in the field of educational privacy, student data and ed-tech matters, Chambers reports that clients regard her as “vey knowledgeable and truly and expert in this space,” with some saying, “On the student data side, she is unmatched.”



  • Cyber, Privacy & Data Innovation
  • White Collar, Investigations, Securities Litigation & Compliance

Nicole Mikiko Tadano Senior Cybersecurity Career Associate Cyber, Privacy & Data Innovation, White Collar, Investigations, Securities Litigation & Compliance


For Nicole Tadano, cybersecurity and data privacy is where her passion for the law meets digital protection. Her practice focuses on the intersection of data, security, and crisis management.

She partners with clients to successfully manage their reputation and brand and to defend against class actions, shareholder derivative suits, and regulatory investigations.

Nicole has a deep background in a broad array of class actions, including matters involving consumer protection, securities, and employment issues in the technology, media, and financial services industries.



  • M&A and Private Equity
  • Corporate Governance
  • Corporate

Jacopo Taddei Associate M&A and Private Equity, Corporate Governance


Jacopo Taddei is an Italian qualified lawyer, Associate in the Milan office and member of the European Corporate Group. Jacopo has solid experience in M&A transactions, corporate governance and in drafting and negotiating complex, cross-border commercial agreements (such as outsourcing, distribution, agency, franchising and supply agreements).

Jacopo also has specific experience in criminal liability of legal entities, and assists some of the most important Italian companies - some of which are listed in Italy or abroad - in drawing up compliance programs in accordance with Italian Legislative Decree 231/01. He also provides legal assistance to Vigilance Bodies (“Organismi di Vigilanza”) of several companies (mainly banks and insurance companies).

Jacopo is teaching assistant in “Company and Business Law (advanced course)” at Bocconi University in Milan.



  • Securities Litigation, Class Actions and Shareholder Derivative Lawsuits
  • Corporate Governance
  • Class Action Defense
  • Complex Litigation & Dispute Resolution
  • White Collar, Investigations, Securities Litigation & Compliance
  • ERISA & Benefits Litigation

Alex Talarides Partner Securities Litigation, Class Actions and Shareholder Derivative Lawsuits, Corporate Governance

San Francisco

Alex Talarides is a Partner in the White Collar, Investigations, Securities Litigation & Compliance group.  His practice focuses on defending companies and their officers and directors in securities class actions, shareholder derivative actions, mergers and acquisition litigation, and regulatory proceedings.

Alex is acknowledged by Legal 500 as a "Next Generation Lawyer" for Securities Litigation: Defense.  He has extensive experience representing companies and individuals in securities class actions, shareholder derivative actions, mergers and acquisition litigation, regulatory proceedings and other complex commercial litigation.  He also regularly advises companies and their boards on corporate governance, fiduciary duty and disclosure duties.  In addition, he has extensive experience representing companies in consumer class actions alleging violations of state deceptive marketing laws, and class actions alleging violations of the Employee Retirement Security Income Act.



  • Corporate
  • Technology Companies Group
  • M&A and Private Equity

Stephen Tallon Managing Associate Corporate, Technology Companies Group


Stephen is a managing associate and part of Orrick's Technology Companies Group in London. He works with early stage and growth companies looking to build exciting new businesses and is focussed on providing innovative and pragmatic advice to his clients.

Managing transactions in an efficient and productive manner and providing clear and concise advice is at the core of Stephen's approach to work. He actively engages with clients to understand the key issues and concerns in order to provide tailored advice that really adds value. Stephen is driven by being a trusted advisor to his clients, not just another service provider.



  • M&A and Private Equity
  • Infrastructure
  • Energy
  • Corporate
  • Africa
  • Real Estate

Patrick Tardivy Partner M&A and Private Equity, Infrastructure


Patrick Tardivy is an M&A and Private Equity lawyer in our Paris Office and the Office Leader.

Patrick advises French and international clients on all aspects of corporate law. He mainly intervenes on M&A and Private Equity matters as well as joint-ventures. He specializes in the sectors of aerospace and defense, as well as energy and infrastructures, and real estate investments. He also has experience in investments in Francophone Africa.

According to Legal 500 EMEA 2016, clients praise Patrick for his “excellent business acumen to match in-depth legal experience”.

Before joining Orrick in 2016, Patrick was a partner at Freshfields Bruckhaus Deringer.



  • Employment Law & Litigation

Emily F. Taylor Senior Associate Employment Law & Litigation


Discrimination and harassment cases require a precise blend of zealous advocacy and compassion. Emily artfully balances these skills to expose false allegations.

Emily’s advocacy also includes her methodical research and analytical skills. She draws upon those skills to synthesize complicated and often emotionally-charged issues into persuasive and reasoned arguments.

To help her clients avoid litigation and create a healthy work environment, she provides training on discrimination and harassment compliance and prevention.

In her pro bono work, she has helped international non-profit groups analyze and develop legal frameworks relating to issues such as freedom of speech and fighting corruption in developing countries.



  • Impact Finance and Investment
  • M&A and Private Equity
  • Funds
  • Technology Companies Group
  • Corporate

Perry Teicher Impact Finance Attorney Impact Finance and Investment, M&A and Private Equity

New York

Perry Teicher, an attorney based in Orrick's New York office, serves on the leadership of Orrick's global Impact Finance & Investment group as the Impact Finance Attorney, advising impact-oriented clients globally.

Perry represents and advises entrepreneurs, fund sponsors, family offices, and tax-exempt organizations across a wide range of transactions, including corporate legal matters, cross-border mergers and acquisitions, private fund formation matters and portfolio transactions, and private placements. Perry particularly advises clients that aim to integrate social, environmental, and financial outcomes. As Orrick’s Impact Finance Attorney, Perry leads Orrick’s Impact Finance & Investment practice, the first impact-oriented practice at a global law firm. Orrick’s Impact Finance & Investment practices serves a global client base across a range of sectors, leveraging Orrick’s unique capabilities to provide innovative, effective, and thoughtful legal services to those clients aiming to create positive social and environmental change alongside targeted financial returns.

Perry served as a Peace Corps Volunteer in Kazakhstan, where he supported the development of businesses aiming to create mobility and opportunity for people with disabilities in the region. Perry is a Ariane de Rothschild Fellow and member of the ROI Community and Nexus. A native of the Detroit area and University of Michigan graduate, Perry remains committed to the Detroit area, supporting Detroit expat initiatives nationally.



  • Complex Litigation & Dispute Resolution
  • Insurance Recovery
  • Cyber, Privacy & Data Innovation

Darren S. Teshima Partner Complex Litigation & Dispute Resolution, Insurance Recovery

San Francisco

Darren Teshima helps clients intelligently manage risk. From providing counsel to safeguard against anticipated and unforeseen dangers to handling high stakes litigation, clients turn to him for creative solutions to protect their businesses. Chambers USA 2020 quotes clients praising his ability to “balance expert knowledge with practical application.” Darren is sought-after for his advice to policyholders in insurance coverage disputes. With the profound uncertainty of COVID-19, clients are relying on Darren’s extensive insurance coverage experience to pursue claims and his proactive judgement to review policies to mitigate and eliminate potential coverage gaps.

Darren’s proactive judgement has protected clients’ long-term business goals time and again. Co-chair of the Complex Litigation & Disputes Resolution practice, Darren serves as a true business partner to clients in the technology, fintech and financial services industries. He tailors innovative strategies to help avoid litigation and minimize cyber, data and cryptocurrency concerns, as well as D&O and professional liability. Leaders in the fintech space also seek Darren’s counsel on E&O and cyber loss coverage.

When litigation is necessary, Darren helps clients assert their rights. He’s successfully litigated high stakes commercial disputes with significant wins in connection with insurance coverage, RMBS, D&O coverage, and cyber insurance for some of the largest data breaches in history. He was part of the Orrick team for Credit Suisse that handled one of the only post-financial crisis RMBS cases to go to trial.

A recognized leader, Darren has been ranked for his work on behalf of insurance policyholders by Legal 500, Chambers USA, and has been named a Law360 Rising Star, one of the "Best Lawyers Under 40" by the National Asian Pacific American Bar Association.

Darren, co-Partner-in-Charge of Diversity and Inclusion at Orrick, is passionate about making the legal profession inclusive for all. In addition to his leadership at Orrick, Darren takes an active role in D&I industry engagements, including as a fellow in the Leadership Council on Legal Diversity and participating in the Diversity in Law Hackathon.

Darren also is deeply committed to pro bono work and community involvement. He’s handled administrative trials and hearings on behalf of asylum seekers and low-income tenants and provided litigation advice to nonprofit organizations. For his efforts, Legal Services for Children honored him with the Pro Bono Advocate Award twice. Currently, Darren is the chair of the Asian Americans Advancing Justice – Asian Law Caucus, and serves on the boards of Center for Gender & Refugee Studies and Legal Services for Children.



  • M&A and Private Equity
  • Corporate

Guido Testa Partner M&A and Private Equity, Corporate


Guido Testa is partner, Office Leader of Orrick’s Italian offices and member of the M&A and Private Equity Group. Guido's practice focuses mainly on M&A, private equity and venture capital, as well as on corporate law and commercial contracts.

In these areas, he represents primary enterprises, merchant banks, private equity and venture capital funds, as well as family offices, both in domestic and cross-border transactions.

Before joining Orrick, Guido worked as an associate at Studio Legale Carnelutti in Milan from April 1983 to December 1984. From January 1985 to December 1988, primarily he was an associate and then the Italian resident partner at Carnelutti’s London office. From January 1989 to September 1990, he worked as the Italian resident lawyer for Werbel, McMillin & Carnelutti, a U.S. law firm based in New York City.

From October 1990 to December 1997, he was a partner at Studio Legale Carnelutti in Milan. From January 1998 to December 2008, he was a partner at Vita Samory, Fabbrini e Associati, an Italian law firm based in Milan.



  • Technology Companies Group
  • Life Sciences
  • M&A and Private Equity
  • Corporate Governance
  • Capital Markets

Stephen Thau Partner Technology Companies Group, Life Sciences

New York; Silicon Valley

Stephen Thau is a partner in Orrick’s Technology Companies Group. He is a strategic advisor to life sciences and technology companies, guiding them through various milestones of their life cycle.

Stephen’s practice focuses on the representation of life science, medical device, health IT, and other technology companies in transactional matters, including public and private financings, licensing, collaborations and strategic alliances, and mergers and acquisitions. He also represents venture capital firms in public and private financing transactions.

Stephen has served as a member of the Board of Tech Council of Maryland, the leading technology and life science association in that state, and of BayBio, Northern California’s leading life sciences association. He is a frequent speaker on venture capital financings and served on the faculty at the 2005 and 2007 Emerging Entrepreneurs workshops at Stanford University.

Prior to joining Orrick, Stephen was a partner at Morrison & Foerster, Venture Law Group and Heller Ehrman. He began his legal practice as a litigator, focusing on securities and intellectual property.  He also served as a law clerk to the Hon. Vaughn R. Walker in the United States District Court in the Northern District of California.  Stephen graduated Order of the Coif from Stanford Law School, where he was managing editor of the Stanford Law Review, and graduated magna cum laude from Harvard College in Biology.