People

Blake Dewveall Associate

Los Angeles

He advises lenders and corporate borrowers in a wide range of secured lending facilities and commercial financing transactions.

Blake was a summer associate in the firm's Los Angeles office in 2022.

Mariangela Di Giandomenico Partner

Roma

Esperta di diritto amministrativo e pubblico, nel corso della propria carriera ha prestato consulenza a imprese private e pubbliche, italiane e straniere, oltre che a corporations e pubbliche amministrazioni in materia di diritto pubblico e nel contenzioso, anche nel contesto di operazioni di M&A.

Mariangela ha maturato una vasta esperienza in tutte le aree del diritto amministrativo, in particolare nei settori contratti pubblici, urbanistica, real estate, comunicazioni, energia, aerospazio e difesa, life sciences, trasporti e infrastrutture, servizi regolamentati, nonché nel contenzioso dinanzi ai tribunali amministrativi, alla Corte costituzionale e alla Corte europea.

In qualità di avvocato cassazionista, è abilitata a rappresentare i propri clienti davanti alle Giurisdizioni superiori.

Grazie alla rilevante esperienza nel contenzioso davanti ai giudici amministrativi, Mariangela ha contribuito alla definizione delle politiche di diritto pubblico in Italia. Ha collaborato con la Camera dei Deputati e con il presidente della Commissione per la riforma amministrativa, supervisionando la stesura di disegni di legge, relazioni parlamentari e proposte normative.

Nel corso della propria carriera, ha lavorato in studi legali italiani e internazionali e in boutique specializzate in diritto amministrativo.  

Mariangela è membro del Comitato scientifico dell'Associazione Italiadecide e supervisiona l'Osservatorio sui contratti pubblici dell'Associazione. È docente in corsi di laurea magistrale in diritto amministrativo e in corsi per le istituzioni pubbliche. È inoltre autrice di numerose pubblicazioni in materia, relatrice in convegni e seminari pubblici e ricercatrice per associazioni private e pubbliche.

Nel 2021 Mariangela è stata inserita da TopLegal tra i migliori avvocati specializzati in appalti pubblici e concessioni. Nel 2022 è stata nominata avvocato dell'anno in materia di infrastrutture e PPP da Legalcommunity.

Marc Diab Maalouf Senior Associate

Parigi

Marc advises investment funds, industrial groups, listed companies, and startups, both French and international, on all aspects of business law, particularly in the context of acquisitions, disposals, mergers, reorganizations, and strategic partnerships. 

He is particularly active in the infrastructure, renewable energy, and new technology sectors, both in France and internationally.

Before joining Orrick in 2019, Marc interned at various leading international law firms in Paris.

Brandon Dias Partner

Sacramento

California Local Government Finance. Brandon focuses on California local government financing structures including general fund lease revenue bonds and certificates of participation; pension obligation bonds; tax and revenue anticipation notes; mello-roos bonds, assessment district bonds and other land secured financing structures; redevelopment financing; water and wastewater revenue bonds; airport revenue bonds; and public power revenue bonds.

Tax-Exempt Healthcare Finance. Brandon also focuses on tax-exempt healthcare finance for 501(c)(3) organizations. His experience includes financings for standalone hospitals, hospital systems and continuing care retirement communities. He has served as bond counsel or underwriters' counsel on tax-exempt healthcare financings in various states throughout the nation.

Leon Diederichs Associate

Düsseldorf

He focuses in particular on disputes in antitrust law. His work includes representing a client from the petrochemical industry in the enforcement of antitrust claims for damages against companies involved in cartels.

Already as a trainee lawyer at Orrick, he contributed to the successful action for annulment of an investment control prohibition decision before the Berlin Administrative Court.

Before becoming a lawyer, Leon Diederichs completed a stage at the German Federal Cartel Office and worked for several international law firms including Orrick.

Roberta Dimaggio Managing Associate

Milano

Roberta focuses her practice on private equity transactions and corporate matters. She advises clients on national and cross-border mergers and acquisitions, corporate governance and commercial law matters.

Arden Dion Associate

Houston

Arden focuses her practice on mergers and acquisitions, project development and general corporate matters for clients primarily in the oil & gas, renewables and conventional power sectors.

Rebecca Dipple Professional Support Lawyer

Londra

Rebecca has acted for “Big Four” audit firms and global listed companies in a range of matters. These have included complex professional negligence litigation in the High Court, internal investigations and investigations by domestic and overseas regulators including the Financial Reporting Council, the Securities and Exchange Commission and the Public Company Accounting Oversight Board.

In addition to the above, Rebecca has also advised on UK and EU public procurement legislation including the application of the OJEU notification requirements to real estate developments.

Jonathan Direnfeld Partner

Washington, D.C.

Jon’s enforcement work involves helping clients navigate the patchwork of federal and state “consumer protection” rules and defending investigations and enforcement actions brought by the Federal Trade Commission (FTC), U.S. Department of Justice (DOJ), State Attorneys General (AGs), and other state regulatory agencies. These matters cover a broad spectrum of B2C and B2B issues, including data privacy, cybersecurity, greenwashing, and so-called “unfair and deceptive” sales and marketing practices with a focus on representation of e-commerce platforms, marketplaces, gig economy, social media and fintech companies. In connection with these enforcement matters, Jon is able to leverage his substantial experience in crisis management by helping clients devise and implement coordinated regulatory, legislative, and media responses to these high stakes incidents.

Jon also helps companies identify and understand regulatory risks and opportunities associated with ESG marketing and goals by providing guidance on greenwashing and the FTC’s Green Guides to help clients avoid deceptive marketing for environmental responsibility and sustainability.

Jon also has substantial experience in the antitrust and competition space, including class action antitrust litigation, criminal cartel investigations and enforcement actions before the DOJ and international regulators, as well as mergers and acquisitions and conduct investigations before the DOJ and FTC. In addition, Jon also provides strategic public policy counseling to clients on consumer protection and data management matters before Congress and executive branch agencies, and he has an active complex commercial litigation practice in federal and state courts across the country.

Stanley Dirks Senior Counsel

San Francisco

He represents issuers and underwriters of tax-exempt bonds to finance a variety of public facilities and programs, including water and power systems, airports, schools, rental housing loan programs and homeownership loan programs.

Stan has served as a lecturer and panelist on a variety of programs concerning state and local government debt issuance. He also served for ten years as one of the original members of the Technical Advisory Committee of the California Debt and Investment Advisory Commission.

Stan also has a long history of involvement in the governance of nonprofit education, arts and other charitable organizations.

Justis Dixon Junior Strategist

Washington, D.C.

Before joining Orrick, Justis gained diverse experience working with elected leaders at both the federal and local government levels.

Justis worked in the office of U.S. Representative Jared Golden (ME-02), where he focused on constituent communication, legislative research, and policy-focused writing. Prior to that, Justis worked with the Town of Topsham's Town Manager's Office, where he led efforts to survey the community about pressing issues. Justis also has experience supporting litigators advocating on behalf of victims of child abuse and domestic violence within a small nonprofit firm.

Justis is a graduate of Bowdoin College, where he received a B.A. in History and Government & Legal Studies.

ThuyMy Do Associate

San Francisco

T provides guidance to developers and investors in the renewable energy sector—with a focus on solar, wind, biomass, and carbon sequestration projects—in structuring corporate transactions and debt and equity financing to maximize tax credits and other tax incentives.